ASST.SCIENTIST(Chemistry)IUPAC Nomenclature of Organic Compounds APP:NARESH IAS ACADEMYByBHARGAV SIR

Added: 2026-05-09

[00:00:03]Yeah, good evening all of you. Uh continuation of uh this assistant scientist combination track. What is track here? Organic trackups start. So UPSC of all functional groups including biomolecules heading. So it is applicable for all types up named then we can easily understand that uh remaining isomearisms trans next to RS configuration DL configurations different projections FER projection flying WS representation how next Newman representation Sahar's zigzag representations so all representations are based on the UPSC names UPSC names for transform but okay so all these things we can easily understand by the help of UPSC nomenclature next uh yeah organic compounds UPSC nomenclature of and we are focusing on organic okay so organic means carbon containing right we know the definition already so organic container you must start with pure chemistry otherwise it is also called organic carbon containing chemistry and yeah Coming to the rules, right? UPSC naming of organic compounds.

[00:01:43]Okay.

[00:01:48]IUPAC naming or UPSC nomenclature even UPSC nomenclature of inorganic chemistry also and in organic chemistry especially in coordination chemistry we have different UPSC naming so here this is completely pure organic chemistry UPSC name okay and we know starting so you're at the level of degree so that's why you can easily understand what is the full form of UPSC so UPSC stands for this one is international level thing so that's why it is called international international next to union of international union of pure and pure and A stands for applied applied C stands for chemistry Okay. So complete full form of UPSC issational union of pure and applied chemistry. The compound UPSC is accepted by whole worldwide UPS standard. Okay. Yeah. It is international level thing. Then so how can we write the UPSC naming of the components? We have set of rules. Okay.

[00:03:11]We have some set of rules.

[00:03:15]UPSC set of rules. Rule number one, I'm not telling the story before what is happening in the UPSC how UPSC is started. So just one to two minutes.

[00:03:26]Fine student. So before UPSC we have trivial naming derived naming. So trivial naming based on the color of the compound based on the nature of the compound based on the sorry based on the smell order of the compound. Sometimes it is scientist name, sometimes it is availability of the area. So scientational language that language is called UPS.

[00:04:07]Okay. So first compient these are the fundamentals of organic chemistry scientist name Frederick Frier scientist question we are not sure scientist.

[00:04:36]So ammonium is NH4 no problem at all. Okay. Right. So ura NH2 C double bond NH2. This one is called ura. This is the first organic compound in the universe. So first organic compound man-made organic compound.

[00:05:01]Vital force theory. Vital force theory.

[00:05:03]According to vital force theory the carbon existed in what is organic chemistry definition study of carbon and its derivatives right. So the carbon existed in human sorry living organism only. So that is the vital force vital force theory point of view force organic component that particular carbon should be existed in the living organism.

[00:05:26]So to disprove that one vital force dispro so ura containing carbon okay so this is the first organic component this one is called ura and next components lot of components there is no proper naming so that's why to overcome all the problem scientist name area color order okay now we are not remember all those things structures scient capacity. So structure based on the atoms present in that structure or molecule we can easily understand the UPSC name. So strategy UPSC so recent recent five six years back 199 start 1919.

[00:06:15]So 2019 2019 100 years 100 years 100 years right. So 100 years UPS but we are not sure about the compound is correct structure of UPS or not.

[00:06:41]the rules into three major rules. First rule number one is selection of selection of longest continuous carbon chain longest continuous carbon chain.

[00:07:00]So first rule compound first selection of longest continuous carbon chain select square. Next rule number two already selected. So carbon chain already select the so we must give the numbering to that one. Numbering of numbering of selected selected parent parent carbon chain.

[00:07:34]Okay. So numbering of selected parent carbon chain apparent carbon chain numbering first stage parent second numbering is and third one is what is third one that is called arranging format and this one is called arranging format.

[00:07:59]arranging format like so okay finally this is up okay that is called arranging format so we have some rule first one is locant prefix word root primary suffix secondary suffix in case there is a cylo compound cycllohexane the terminology cylo the terminology bicycllo the terminology tricycllo so some terminology trietra so these are some prefixes this. Okay.

[00:08:29]So that is called arranging format.

[00:08:31]Arranging format.

[00:08:36]So it is we have to arrang for okaying formula first selection of longest continuous carbon and second one is numbering of that one selection.

[00:08:54]Then coming to the first one. First rule selection of longest continuous carbon chain. Give the side reading. Selection of longest continuous carbon chain.

[00:09:07]First one selection of so long continuous carbon chain considered as parent carbon chain for your kind information. Okay. So selection of longest longest continuous selection of longest continuous carbon chain.

[00:09:37]Okay. Selection of longest continuous carbon chain. In that have we have separate rules. Those are called sub rules. Okay. Sub rule. Rule number one.

[00:09:47]So three major rules. Three major rules for better understanding. Okay. Each and every point for better understanding we have some rules. Rule number one. Rule number one.

[00:10:04]In case in case single bond rule number one is in case single bond. Okay. So compon double bond triple bond you can cross check it because carbon existed in CC single bond double bond triple bond okay right so in case carbon carbon single bond then that case rule number one is identify terminal rule number one is identify the terminal terminal identify Okay. Terminal carbon. Terminal means ending starting ending. Okay. Starting point ending point. Okay. Right. So identify the terminal comma. Select select longest longest carbon chain. So identify the terminal then select longest carbon chain. Example.

[00:11:07]For example, one to example number one. Better to write examples serial. Okay. 1 2 3 4 5 six carbons. And here 1 2 3 4 5 carbons.

[00:11:22]Okay. Right. So first what is the first rule? Selection of terminals. All are single bonds. First carbon carbon all are single bonds. So this one is one terminal. Terminal number one and 2 3 four. This one is one terminal and this one this one is one terminal.

[00:11:39]Okay. Selection of terminals completed.

[00:11:41]All are single bonds. Okay. Completed.

[00:11:43]Then travel from one terminal to another terminal. Check it. 1 2 3 4 5 6. Six carbon chain. One. Next. 1 2 3 4 5 6 7 8. One is six. Another one is eight.

[00:11:56]Which one is longest? Obviously eight, right? So eight containing eight containing carbon is this one is considered as parent carbon chain. Okay.

[00:12:06]Now so gent molecule gain chain. Okay.

[00:12:11]Now continuous carbon chain is called that is rule number one. Yes. Rule number one clear. Then coming to the example number two. Example number two.

[00:12:19]1 2 3 4 5 1 2. So how can we select this one? How can we select? Identify all are single bonds. First thing is all are single bonds. Okay. Second thing terminal. This one is one terminal and this one is one more terminal and here this one is one more terminal. Total three terminals start the journey. 1 2 3 4 5 1 2 3 4 5 1 2 3 4 Oh, all are five.

[00:12:48]You can choose anyone. We can choose anyone. Okay. All are five. Better to write one more better. Now select this one is terminal accidentally match. So leave it. This is okay. Next carbon here. How many? 1 2 3 4 5 6 7 1 2 3 4 5 6 7. Again it is clash.

[00:13:15]Again it is clash. Okay. Expand structure. Carbon. Carbon. Okay. Fine.

[00:13:22]This one is terminal. Okay. Traveling 1 2 3 4 5 6 1 2 3 4 5 6 7. This one is parent carbons.

[00:13:33]Okay. Now, this one is that is rule number one. So, rule number one is in case if it is having all carbon carbon single bonds uh and identify the terminal and select the longest continuous carbon. Coming to the rule number two. Rule number two.

[00:13:47]In case in case multiple bond in case multiple bond. So multiple bond means double bond comma triple bond TB multiple bond in case multiple bond whether it is double bond or triple bond. Okay. Now what is the point? So how can we describe the point?

[00:14:15]Multiple bond MB should be in should be in parent carbon. Say parent carbon multiple parent.

[00:14:40]Okay, that is rule number two. CC single bond no problem. In case CC double bond triple bond the double bond triple bond should be in the parent compulsor.

[00:14:52]Okay. Right. Example example. For example 1 2 3 4 5 6 double bond carbon carbon. Okay, this is the statement. This is the structure not statement example number one. Okay, uh terminal first we know first rule number one.

[00:15:19]This one is terminal and this one is terminal and this one is terminal. How many terminals here? 1 2 3 terminals.

[00:15:26]Okay. 1 2 3 4 three terminals. So start the numbering. 1 2 3 4 5 6 7 carbons. 1 2 3 4 5 6 carbons. Next. 1 2 3 four carbons. Okay.

[00:15:42]1 2 3 four car. Which one is This one should be in the parent carbon chain.

[00:15:47]This one should be in the parent carbon chain. Okay.

[00:15:52]This one is parent carbon chain. 1 2 3 4 5 6 7. So unfortunately it is longest as well as C double bond C containing.

[00:16:03]Longest as well as C double bond C containing. Next example number two.

[00:16:10]Example number two. Carbon. Carbon.

[00:16:13]Carbon. Carbon. Carbon.

[00:16:16]Carbon. 1 2 3 4 5 6. Next. Here. Carbon.

[00:16:21]Double bond. Carbon.

[00:16:26]Carbon. Carbon. Okay. Now identify the terminals. Terminals. Just bend structure. This one. This one is one terminal. 1 2 3 4 5 6. This one is one more terminal and this one is one more.

[00:16:42]How many terminals here? Three terminals, right? 1 2 3 terminals. Okay.

[00:16:48]Yeah. So, 1 2 3 4 5 6 7 8 1 2 3 4 5 6 1 2 Sorry, 1 2 3 4 5 6 7 8 is the longest continuous carbon chain. But unfortunately, what is happening here?

[00:17:04]It is not containing C double bond C bond C r C double bond C or C triple bond C should be in the parent carbon we have to select this one 2 3 4 5 6 7 1 2 3 4 5 6. So this one is considered as parent carbon chain.

[00:17:24]This one is considered as parent carbon chain. Okay. Parent carbon chain. Yes.

[00:17:29]Clear. Right. Okay. This is the selection of in case double bond, in case multiple bond that is the rule.

[00:17:36]Okay, this is rule number two. Coming to the rule number three. One more slide.

[00:17:41]Coming to the next slide. Rule number three.

[00:17:46]Rule number three. Rule of multiple substitutes.

[00:17:56]Multiple substitutes.

[00:17:59]Rule number three is rule of multiple substants. So multiple substants that is the strategy. Okay. Coming here for example there is only one example.

[00:18:13]One example 1 2 3 4 5 6 1 2 here one and this one. Same example again I'm writing here 1 2 3 4 5 6 next 1 2 here one here two here carbon and here also carbon and again I'm going to write the same 1 2 3 4 5 6 1 2 1 2 here one here one next again I am writing I'm sorry we just compare okay now one two here one Here too your carbon.

[00:18:57]Okay. Right.

[00:19:00]Yeah. Selection of this one. This one is the color. Fine.

[00:19:06]Selection. How many terminals? First terminal.

[00:19:10]One terminal starting point. And this one is one end. And starting point. This one is one end. And this one is one end.

[00:19:18]Next. This one is one end. And this one is how many ends here? 1 2 3 4 5 6. Six ends. All are having same right? All are having same six ends six ends. Okay.

[00:19:29]Right. So one end to another end all are single bonds. All are single. There is no double bond here. All are single bonds. 1 2 3 4 5 6. One set. Okay. This one is one representation.

[00:19:44]Next. 1 2 3 4 5 6 1 2 3 4 5. This one is one set.

[00:19:54]Next. This one.

[00:19:59]1 2 3 4 5 6 and this one. This is somewhat different one terminal to another terminal.

[00:20:09]Okay. And compare four. So this is considered as parent carbon chain. This bulky group. This one is substrate and this one also substanti. How many substrates here? Two substrates. And coming here methile, ethile propile how many substrates here? Three substrates here. 1 2 3. Methyl ethile isopropile.

[00:20:32]Here also three substants. And coming here 1 2 3 4.

[00:20:40]Okay. Rule is multiple substituents.

[00:20:44]Multiple substant. Rule of that is rule number three. Rule of substant.

[00:20:49]Multiple substants. Okay. Now, more substituents.

[00:20:56]More substitutants.

[00:21:00]For your kind information, parent carbon chain size should be same.

[00:21:05]Parent carbon chain size same. Six carbons. Six carbons. Six carbons. Six carbons. All are six carbons. In case the parent carbon chain size is same from your traveling from one point to another point, you have to select the more substituents as parent carbon chain. So parent is parent chain. Okay. So this one is the right representation and these are the wrong representations. Okay. These are the wrong that is rule number three. So rule number three is the rule of substance.

[00:21:42]First one is first one is only CC single bond. Second one is multiple bond. Third rule is more substance considered as the parent carbon. Okay. Right. Next rule number four.

[00:21:55]Rule number four.

[00:22:00]Rule number. So rule of functional group. This is the rule of functional group.

[00:22:08]Role of functional group.

[00:22:18]Okay.

[00:22:21]Otherwise rule of priority.

[00:22:26]Rule of priority. So again previous okay. So first set functional group I call it as FG is greater than MB. This is called multiple bond then substitute.

[00:22:43]This is the rule number four. So priority selection of parent carbon side and this one is the priority priority value. Okay. Right. Okay. Example.

[00:22:54]Example.

[00:22:57]For example, CH3 CH2 CH double bond CH 2 CO Here CH2 CH2 CH2 CH2 CH3 this is the question okay now J structure no problem uh so first single bond there is a double bond here that is called a multiple bond okay next functional group so this is considered as functional group we consider this one as functional group next this one is double bond this one is double bond double bond considered as multiple which one is highest priority co containing co should be in the parent carbon and say okay because it is functional group. This one is called functional group.

[00:24:02]This one is called functional group and this one is called multiple bond. Right?

[00:24:07]Okay. So how many terminals? This one is terminal and travel. Travel travel. This one is terminal and travel. This one is terminal. How many terminals start then?

[00:24:18]1 2 3 4 5 6 7 8 9. Okay. Good. 1 2 3 4 5 6 7 8 9 is greater. But unfortunately in nine there is no functional group. Okay.

[00:24:30]That's why you must select the functional group. You must select the parent carbon chain like this. This one is considered as parent carbon. Parents carbon consider whatever the molecule that is automatically become substitute.

[00:24:45]Okay. This one is substitute.

[00:24:50]Okay. This is called um rule of functional group. In case there is a functional group, there is a multiple bond there is a substitute. The priority is highest priority functional group then multiple bond then substitute. So the parent carbon chain should contain functional group first thing. Okay. Then covering of multiple bond then last substitut. Okay. This is rule number four. Next last rule that is rule number five. Last rule. Rule number five.

[00:25:25]What is the last rule?

[00:25:28]Rule of carbon containing functional groups.

[00:25:32]Carbon containing functional groups.

[00:25:40]Carbon containing functional groups.

[00:25:46]Okay. Carbon containing functional groups. examples carbon containing functional group. CH is caroxilic acid is carbon containing functional group. Next this one is called ketone that is called carbon containing functional group. Next al head also carbon containing functional group. In case in case the parent carbon chain containing carbon containing functional group. Okay. Uh give the high priority.

[00:26:16]Give the high priority.

[00:26:24]So high priority and high priority 1 2 3 4 rank high priority. Okay. So same here also you must give the least number 1 2 3 1 possible at least two petrol that is not right way. Okay.

[00:26:45]According to UPS rule rule of last of selection of longest continuous carbon chain the functional group especially carbon containing functional group in the parent carbon chain that is give the high priority. High priority stands for uh numbering should be low or low number.

[00:27:05]Numbering should be low should be one to two.

[00:27:16]Okay. These are the rules. Okay. Set of rules. First selection of longest continuous carbon chain. These five are the major rules. So clear. Next set number two. Set of rules. Category number two. Numbering of selected longest continuous carbon. Okay. Yeah.

[00:27:31]Keep the side reading. Numbering of set number two.

[00:27:38]Set two. Numbering. Already parent carbon chain selection is completed.

[00:27:43]Next numbering of. So we selected one carbon chain that is considered as that is called as parent carbon chain. So after parent carbon chain selection is completed. Next, numbering of parent carbon.

[00:28:00]Numbering of parent carbon.

[00:28:07]Okay. Numbering of parent carbon. Parent carbon. Second. Numbering ali. First rule again it is also having rules. Rule number one rule of priority.

[00:28:20]Priority rule or rule of priority.

[00:28:23]Already we discussed in the previous set of rules that is first one is functional group.

[00:28:31]So greater than multiple bond is greater than substitute.

[00:28:43]Functional group is greater than multiple bond is greater than substantain. That is rule number one.

[00:28:49]Okay. For example, example CH3 CH2 CH CH2 CO O H double bond CH2.

[00:29:12]How can we give the numbering? Okay, we must identify first which one is parent carbon chain. Okay. Right. So this one is the functional groups. We know this one is called functional group and this one is called multiple bond.

[00:29:27]This one is called a multiple bond. And you know the previous rules right?

[00:29:31]Previous rules functional group high priority then multiple bond.

[00:29:36]First functional group especially that is carbon containing functional group.

[00:29:40]Okay. So this one is carbon containing functional group. Number one change the color.

[00:29:47]H this one is number one high priority is number one position. Number two okay what about number three this one is number three number four number four which one side automatically downside because this one is carbon carbon double bond multiple bond parent carbon chain containing functional group first priority second priority multiple bond then substain. Okay. So once parent carbon chain selection is completed automatically this one become substrate.

[00:30:18]Okay this is the numbering pattern.

[00:30:20]Okay. Rule number one is priority rule.

[00:30:22]This one is high priority because functional group. This is the next priority because it is multiple bond and remaining automatically become substitutes. Okay. Next rule number two.

[00:30:34]Rule number two again previous color.

[00:30:41]Priority rule after rule number two.

[00:30:48]Rule of alphabet.

[00:30:52]Alphabetical order.

[00:30:58]Rule of alphabetical order. So this is possible in symmetrical molecule only.

[00:31:05]SY symmetrical molecule symmetrical molecule okay example raster example for example here I am writing CH3 CH CH2 CH and CH3 okay there is a substrant this one is called broine there is a substrant this one is called chlorine. Okay. Give the numbering. Selection of longest continuous carbon chain first. Selection of longest. So this one is one terminal.

[00:31:44]1 2 3 4 5 is okay. One terminal and bromine chlorine are the substance. And florine, chlorine, bromine, iodine all are belongs to the halogen family. So nic starts from right to left or left to right. This is the problem. For example, right to left 1 2 3 4 5. Substain position here. Number one 2 3 4 5 Next.

[00:32:07]One more red numbering. One more chance. 1 2 3 4 5.

[00:32:18]Okay. For example, left to right. Left to right. Two chloro.

[00:32:25]Is it comfortable? Color four bromo Br.

[00:32:32]This is one set. Oh, very accurate. The color is okay. Fine. Next. Next. Uh, left to right. Two bromo and four chloro. So, how can we apply the alphabetical rule?

[00:32:51]B and C. Here the competition between B and C. Which one is first? B is first.

[00:32:57]So B and C is right. Two bromo four chloro this representation is right and this one is wrong. That is called alphabetical rule. In case symmetrical molecule you can traveling from left to right or right to left the position of the substant is same and the substant should be in the same family the substance are brochlor in case nitro in case nitro. So we are moved to the N nitro N. Okay. So here Br and CN bromemo and chloro. So alphabet first B after C.

[00:33:28]Okay. So two bromo four chloro is the right representation and this one is wrong. And uh we have questions on this one question. Right. So this is rule number two. Okay. Next rule number three.

[00:33:42]Next look at the rule number three.

[00:33:46]Rule number three.

[00:33:49]Rule of sum or this one is called sum rule.

[00:33:57]Sum rule is stands for sum of substitutes.

[00:34:04]Sum of substants is less number.

[00:34:11]Less number sum of substances less number is Sum of substances less number is uh right representation or right structure right and sum of substance is more number more number is wrong representation Okay. Now we have not considered this one. Okay. I'm only convinced wrong that is become right. Okay. Fine.

[00:34:49]Example.

[00:34:53]Example CH3 CH2 C here. CH3 here. CH3 and CH3 here also. CH3.

[00:35:10]Okay. Selection of change the color first. Okay. Pink. Fine. H. How many terminals? All are single bonds. First rule number one is okay. All are single bonds. Here uh this one is one terminal.

[00:35:23]One. This one is one more terminal. This one is one more terminal. And this one also one more terminal. And here one more terminal. Okay. How many terminals?

[00:35:32]A lot of terminals. 1 2 3 five terminals. Neighboring starts from for example left to right or right to left.

[00:35:38]1 2 3 4 5 1 2 3 4 5 1 2 3 1 2 3 No. So five is the longest continuous carbonation. That's why I'm selecting this one. Okay, this one is the selecting one. Selecting of this one.

[00:35:52]Next one. Numbering for example 1 2 3 4 5. Next one more numbering also possible. Right. Select this green color here. Numbering 1 2 3 4 5 one set. Okay.

[00:36:13]Coming to the set.

[00:36:16]H left to right green color. Left to right. 2 comma 4 comma 4. Next right to left 2a 4. So sum add these things. 2 + 4 + 4 is = 10 and here 2 + 2 + 4 is equal to 8.

[00:36:41]This one is right and this one is wrong representation. Okay, this one is right and this one is wrong. This is called sum rule. Okay, this one is called sum rule. Next rule number four. Coming to the rule sorry class sum rule. Sum rule.

[00:36:56]This one is called sum rule. Next rule number four.

[00:37:02]Rule number four, functional group rule.

[00:37:08]Rule number four is functional group.

[00:37:14]Rule number four is functional group rule.

[00:37:19]The statement statement statement.

[00:37:23]For example, one functional group considered as functional group. That is the statement. For example, one functional group considered as functional group. Okay. remaining all functional group becoming substitutes.

[00:37:34]Okay, that is the statement meaning. Now um here carefully there are multiple functional group present in a parent carbon chain. So statement is multiple functional groups.

[00:37:48]Multiple functional groups.

[00:37:54]Okay.

[00:37:55]Multiple functional groups for example compound it is having multiple functional groups. So multiple functional groups containing parent carbon or compound one group selected as one group selected as parent selected as main functional group. Okay now main functional group. So remaining all become substitutes.

[00:38:24]uh remaining functional even though those are those are also functional groups but remaining all became automatically uh amoi substituents of substituents.

[00:38:40]Okay. Okay, remaining all are become substants of them. For example, CH3, CH, CH2, COH.

[00:38:56]Okay. So, this one is functional group in case it is having there is a NH2 NH2 also functional group. Which one is highest priority functional group?

[00:39:05]Obviously, carbon containing is high priority, right? So that's why parent carbon chain selection is like this.

[00:39:10]This one is the parent carbon chain and this part is functional group and this one also originally functional group but becoming substitute. This one become substitute.

[00:39:23]Okay. Now so these are the set of rules set of rules over. Okay. Next the terminology try detra the terminology cylo terminology bicycllo these are called notations. So notations we are going to add to the component because of the presence of the particular component.

[00:39:45]Cyclopropane in case we are using the instead of propane we call it as cylo in case bicyclic representation bicycllo.

[00:39:53]Okay. And heterrocyclic is completely different. Okay. And this one is called uh numbering. So how can we start the numbering here? This one is numbering.

[00:40:05]Select one more color. Numbering 1 2 3 4. Okay. Now this is the numbering.

[00:40:12]Numbering pattern.

[00:40:14]Okay. Next rule number three. What is rule number three? Rule number three is arranging format.

[00:40:27]Rule number three is arranging format.

[00:40:32]Sorry. Arranging format of formula.

[00:40:35]First locant.

[00:40:40]Next prefix.

[00:40:44]Next root word or word root plus primary suffix.

[00:40:55]And last one is secondary suffix.

[00:41:00]primary suffix and secondary suffix.

[00:41:03]This is the formula.

[00:41:05]This is the formula. So locant stands for what is the meaning of locant?

[00:41:11]Position of position of substituent.

[00:41:20]Position of substituent. Next prefix.

[00:41:26]Prefix.

[00:41:28]Name of substituent.

[00:41:31]Name of name of substitute. Next next one is word root size of parent carbon chain.

[00:41:48]Parent carbon chain. Next primary suffix. So this is also called onederee suffix.

[00:42:00]Primary suffix is whether it is saturated or unsaturated.

[00:42:05]Saturated or unsaturated.

[00:42:10]Saturated or unsaturated. Saturated means carbon carbon single bond.

[00:42:15]Unsaturated means carbonarbon double bond carbonarbon triple bond. Okay. And secondary suffix is secondary suffix is functional group.

[00:42:27]Okay. Secondary suffix is functional group. Just two examples.

[00:42:33]Yeah. CH3 CH2 CH2 O select terminals. This one is carbon and this one also carbon and O is functional group. So numbering starts from 1 2 3.

[00:42:50]Okay. Is there any substant? No substant. So format locant first lookant.

[00:42:57]No locant. Next prefix.

[00:43:01]Any prefix? No prefix. Next word root.

[00:43:04]Word root means size of the parent carbons in 1 2 3. So three carbons prop.

[00:43:11]Next saturated unsaturated unsaturated propane plus functional group alcohol.

[00:43:17]Alcohol functional group O. So removal of last from this one that is called propane R. Okay. We have to mention the position propane one propane oneol first position. Example number two for example CH3 CH2 CH here CH3 here NH2 okay this one is functional group but the numbering starts from any one terminal right 1 2 3 4 and here 1 2 3 4 okay so how can we start the numbering yellow start just the numbering this one is called functional group numbering 1 2 3 and four. Number 1 2 3 4 uh two amino amino and alkan. So there is a clash. Okay. Amino and so we are moving to the priority table.

[00:44:14]Priority order. So you have to move to priority order table.

[00:44:22]Priority order of functional group. table.

[00:44:31]Okay. And two amino or butane is right. One more question.

[00:44:38]Butane two amine. Okay. Now which one is right? Butane 2 amine is right or two amine or butane is right. So how can we consider? We must consider by the help of this one. Priority order of functional group. So priority and function we can easily answer the question and question answer comment.

[00:45:07]Okay right and detailed information.

[00:45:12]So if you have interested to join this one.

[00:45:17]Okay. Right. So this is all about UPSC naming of the organic compound UPS we have classes also regular class. So that's it for today. If you have any doubts you can uh come into the comment box and comment it. Thank you all of you.

[00:45:38]Thank you so much.

[00:46:01]You not kiss him, sir. after I chase him.