12th Chemistry | Unit 11 Important 2, 3 & 5 Marks First Midterm 2026 | Shravanee Ma'am

[00:01:31]Can you hear me?

[00:01:34]Hi.

[00:01:39]Uh, is the audio video clear?

[00:01:43]audio video.

[00:01:46]Thank God when starting.

[00:02:02]Yes. So everybody, how many of you are there in the live class?

[00:02:19]Okay.

[00:02:22]Okay.

[00:02:23]Okay. Super. So, can we begin?

[00:02:27]Okay.

[00:02:33]And then everybody smash the like button.

[00:02:37]Very good. So, we are going to I'm going to share something. So so great.

[00:02:46]Okay.

[00:02:54]Okay. So one of the great great great.

[00:03:07]Okay.

[00:03:09]So duper 56 international physics.

[00:03:26]Okay. So 87 countries participate 87 countries.

[00:03:38]Okay.

[00:03:40]Rank one.

[00:03:44]Okay. So, okay. So very congratulations congratulations for him. Okay. So YouTube YouTube zero views. Okay.

[00:04:40]You should not have some distractions.

[00:04:43]Okay. Exam time.

[00:04:52]Examing 24 by7 free exam.

[00:05:10]description, social med.

[00:05:36]Okay.

[00:05:42]200 best.

[00:05:54]Super online course.

[00:06:10]Book offline centers.

[00:06:30]Yes.

[00:06:32]So 11th chapter organic is not something which is easy for me.

[00:06:46]Organic is not something which is easy for me.

[00:06:59]full class.

[00:07:03]Okay. But you have to attend the whole class. Okay. Complete class.

[00:07:09]You should attend complete live class.

[00:07:19]Okay. Super. Super super.

[00:07:30]Okay.

[00:07:32]We will start now. We will start now.

[00:07:46]Okay.

[00:07:50]Okay. Another thing I want to do today.

[00:07:53]Okay.

[00:08:06]Can I show you that also?

[00:08:12]We can start.

[00:08:15]Okay. So, conference. So this is the complete question paper compilation for as well as English medium 11th chapter.

[00:08:44]11 12 13.

[00:08:53]Okay. Chapter 11 12 13ap 11 12 exam.

[00:09:10]Okay. So full live toughminded people I don't want to take risk.

[00:09:38]Very good. Swati jandita rukita rukana ruby ruba.

[00:10:00]Very good.

[00:10:04]Very good. Super full class. Okay.

[00:10:13]Bowman reaction shorten Bowman reaction. Okay.

[00:10:24]Test to differentiate alcohols and phenols. Okay. Soap.

[00:10:35]differentiate between primary, secondary and tertiary alcohols using test.

[00:10:43]Okay.

[00:10:48]Okay.

[00:10:53]Glycerol KH4 H2SO4 H2SO dehydration of glycerol reaction dehydration of glycerolification rate.

[00:11:17]Okay.

[00:11:19]So next reaction it is getting repeated.

[00:11:47]Distinguish between phenols and ethanol.

[00:11:51]Phenol and alcohol or phenol and ethanol.

[00:11:56]Very very important.

[00:11:58]ABCD conversion. Okay. Phenal sodium hydroxide in presence of carbon dioxide.

[00:12:12]when find ABC important most of the time sorry so these questions 99.9% Okay.

[00:12:50]Glycerol reacts with second time repeat.

[00:12:54]Glycerol KHSO4 dehydration of glycerol second time repeat. Okay.

[00:13:12]Distinguish between primary secondary Vtor defination.

[00:13:49]Okay.

[00:13:52]Next reaction reaction. Okay. Reaction phopen preparation from chapter 11 phenol sodium hydroxide sodium phenoxide.

[00:14:08]So reaction basically it is reaction.

[00:14:11]Culps reaction salicylic acid preparation reaction.

[00:14:18]Okay. Victor preparation of acryine from glycerol.

[00:14:24]Preparation of acryine from glycerol. So glycerol based reaction.

[00:14:34]Okay.

[00:14:37]Next explain questions reaction reaction naming reactions reaction coupling reaction.

[00:14:59]Look at this particular question.

[00:15:02]How do react with chlorine question?

[00:15:32]you need to write the product. Okay. So important conversion.

[00:15:38]Okay. This conversion is also very very important. Okay.

[00:15:46]Okay.

[00:15:48]Ethersis reaction Vtor may test glycerol to acryine. Phenol to phenopylene reaction. Ethane glycol 1 dioxide.

[00:16:14]Dehydration of glycerol. Glycerol reaction.

[00:16:20]Phenol zinc benzene.

[00:16:27]This question how many times is it is getting repeated? Okay.

[00:16:34]Biological oxidation.

[00:16:38]Biological oxidation.

[00:17:01]important phenol to pic acid. Phenol to salic alihide reaction. Phenol to parah hydroxyobenzine coupling reaction. So naming reaction direct naming reaction.

[00:17:18]Okay. 1 minute.

[00:17:49]Okay.

[00:17:54]So you have questions.

[00:18:04]Okay. You have everything with you.

[00:18:09]for student guide.

[00:18:25]Okay, don't worry.

[00:18:31]10th 11th 11th I don't know maybe 11th so sweet. Okay.

[00:19:09]Okay.

[00:19:14]Okay.

[00:19:19]Okay. I'm going to teach you five marks.

[00:19:22]Okay.

[00:19:41]only see mariju Very good.

[00:20:08]Start. Okay. Let me start with Lucas test. Okay. Let me start with Lucas test. So to identify primary, secondary and tertiary alcohol test.

[00:20:27]Okay. So testrimary alcohol alcohol.

[00:20:38]Okay. So reagent.

[00:20:46]Okay. What is the Lucas reagent we are using here?

[00:20:53]Concentrated hydrochloric acid.

[00:20:56]Concentrated hydrochloric acid and hydrincide reagent.

[00:21:12]You can put it in the comment section.

[00:21:15]Okay.

[00:21:17]Primary alcohol.

[00:21:20]Primary alcohol reagent, secondary alcohol reagent, tertiary alcohol reagent.

[00:21:35]So primary alcohol reagent no reaction at all.

[00:21:42]Okay. Primary alcohol reagent no reaction. Secondary alcohol react slow appearance of turbidity.

[00:21:55]Okay.

[00:22:01]So what do you mean by turbidity?

[00:22:20]for number one turbidity.

[00:22:33]So tertiary alcohol immediate turbidity immediate turbidity.

[00:22:49]Okay. So it is loc.

[00:23:04]Okay. So primary alcohol will not react.

[00:23:10]Secondary alcoholary alcohol.

[00:23:18]Okay. So reactions.

[00:23:22]Very good. So firstrim alcohol alcoholary alcohol.

[00:23:35]So primary alcohol H2.

[00:23:42]Secondary alcohol C H.

[00:23:46]Tertiary alcohol Crimary alcohol group alacting it with concentrated Hydrochloric acid HCl concentrated HCl react. Okay. In presence of anhydrris zinc chloride.

[00:24:27]Okay. Andhydrris zn2.

[00:24:31]Okay.

[00:24:36]and hydrrim alcohol will give me no reaction.

[00:24:57]Okay. So concentrated hydrochloric acid no reaction CH3 twice C H C So CH3 C.

[00:25:34]Okay.

[00:25:36]So secondary alcohol form slow appearance of turbidity.

[00:25:49]Okay. Immediate turbidity.

[00:26:02]Okay. Super. So Lucas that is Victor mayor test. Okay.

[00:26:15]Next.

[00:26:17]Victor mayor test. So the Victor mayor testrimary.

[00:26:33]Okay.

[00:26:48]Wait, heat.

[00:29:00]And that's reagent.

[00:29:14]Okay. Okay.

[00:29:25]Okay.

[00:29:32]First in presence of phosphorus.

[00:29:43]silver.

[00:29:50]Third step, HN2 nitrous acid. Okay. Nitrous.

[00:29:59]Fourth step, potassium hydroxide.

[00:30:04]Krimrimary, secondary alcohol primary alcohol will give me it will give me red color. Okay. Primary alcohol red alcoholary alcohol.

[00:30:38]Okay. So secondary alcohol will give me blue color. Okay.

[00:30:48]Alcohol. Tertiary alcohol.

[00:30:52]No color change. Okay. So, no reaction at all.

[00:31:07]alcohol in presence of phosphorus. Correct.

[00:31:20]H group H2 nitrous acid K potassium hydroxide primary secondary tertiary alsary no color. Okay. secondary loading.

[00:32:22]Okay.

[00:32:32]Very good. Very good.

[00:32:36]We are going to understand the reaction.

[00:32:40]Okay. So primary also H. Okay. So CH3 primary alcohol iodin in presence of phosphorus. So CH3 I Okay, CH3 N2 What am I doing?

[00:33:41]Nitrous acid. H2 H O Nitrous.

[00:33:51]Nitrous.

[00:33:56]You have to listen then only.

[00:33:59]Okay.

[00:34:02]CH3 primary alcohol CH3 CH3 CH2rim alcohol CH3 CH2 Okay.

[00:34:33]Hydrogen. Alpha hydrogen.

[00:34:37]Hydrogen.

[00:34:46]CH3.

[00:34:48]C N O2. Correct. C N O2.

[00:34:57]N okay, potassium hydroxide.

[00:35:14]Okay. Potassium hydroxide we are getting red color.

[00:35:24]We are getting red color.

[00:35:30]Okay ma'am.

[00:35:34]Listen.

[00:35:38]Okay.

[00:35:50]CH3 C double bond O N O Krim alcohol secondary alcohol I'm going to take the secondary alcohol alcohol. So secondary alcohol okay so CH3 2 * C H first you all know the answer Iodin in presence of phosphorus O group iod CH3 2 * C H iod replacement Ag2 silver nitrate Ag CH3 2 * C H N2 nitrous acid H N H2 CH3 2 * C N2 double bond N double bond N okay bond CH3 group.

[00:37:54]Okay.

[00:38:06]Okay. So, we will be getting the blue color.

[00:38:12]secondary alcohol.

[00:38:15]I'm going to do the reaction for tertiary alcohol.

[00:38:22]So tertiary alcohol three times of alkal group CH3 times C.

[00:38:31]Okay. First step I'm reacting it with iodin in presence of phosphorus. O group iodin replace.

[00:38:42]So, CH3 3 * C iodin Agn CH3 3 * C N2 Okay, H nitrous.

[00:39:15]Okay. Next step.

[00:39:23]Okay. No alpha hydrogen reaction. So no reaction.

[00:39:33]So no reaction at all.

[00:39:39]Not working.

[00:40:19]We primarily focus on videos.

[00:40:26]Okay.

[00:40:29]Priity.

[00:40:32]Okay. 1 minute. I'll just change the room. Okay.

[00:40:37]One minute. Wait.

[00:40:58]Hallelujah.

[00:41:43]Yeah.

[00:41:50]Okay.

[00:41:52]Arach.

[00:42:26]So Lucas test which is Lucas test and then Victor may defense aspir Okay.

[00:42:45]Okay.

[00:42:48]So, next.

[00:42:50]Okay.

[00:42:59]Okay.

[00:43:01]So yes, let me uh download it as PDF.

[00:43:25]We will be learning few extra questions also. Okay.

[00:43:53]Okay. So, what happens? Okay. What happens when phenol reacts with zinc?

[00:44:13]Zinc oxygen, zinc oxide, C6, H6 with zinc.

[00:44:39]Williamson sodium hydroxide.

[00:44:56]Sodium oxide.

[00:44:58]Sodium oxide. CH3 in the CH3 group we get any we get any soul as the product. Okay. Preparation of acryine.

[00:45:23]So direct preparation of acryine glycerol when we heat with dehydrating agents such as glycerol.

[00:45:37]Glycerol. Okay.

[00:45:40]glycerol KHS4 concentrated KHSO4 or concentrated H2SO4.

[00:45:57]So glycerol undergoing dehydration.

[00:46:02]So CH2O C H2O say glycerol KSO4 and then hydrogen hydrogen of water.

[00:46:35]So H2.

[00:46:40]So two molecules of water CH2 C.

[00:46:59]So this is glycerol. Okay.

[00:47:04]Glycerol is reacting with KHSO4.

[00:47:08]Okay.

[00:47:10]Acryine pro2 acryine product.

[00:47:18]Okay.

[00:47:20]Fredal craft reaction.

[00:47:23]So Fred reactions alation.

[00:47:32]Okay. Fiddle alkalation.

[00:47:37]Fiddle assilation.

[00:47:42]Fiddle assilation. So benzene ring O CH3. What is this?

[00:47:51]Any benzene ring OC3 group max class max class.

[00:48:16]Okay, I'll just ask 7:30.

[00:48:51]I'll just check I'll just ask Jenny ma'am.

[00:49:48]Okay.

[00:49:51]We will continue.

[00:49:55]So CH3 chloro methane aluminium chlorine presence of carbon dulfide or direct.

[00:50:18]So, so twoy.

[00:50:35]Okay. 1 2xy group twoin 1 2 3 4 foury group. So four mytoxy.

[00:50:48]So benzene group we call it as okay H3.

[00:51:39]Okay. So CH3 group SOCH3 group twoenon fourth acettophenon product it is sworn oxidation.

[00:52:06]So what is this burn oxidation in this method? Dimethyl oxide DMS oxidizing agents.

[00:52:26]Example, secondary alcohol alcohol h.

[00:52:39]Okay. C2, primary alcohol. CH that is secondary alcohol.

[00:52:53]Secondary alcohol.

[00:52:55]Primary alcohol alihide group secondary alcohol ketone.

[00:53:03]So CH so CH bond.

[00:53:09]Okay.

[00:53:22]Two molecules of HCl dimethile sulfoxide.

[00:53:31]Dimethyl suloxide.

[00:53:34]Dimethile sulfur.

[00:53:39]Dimethyl sulfur.

[00:53:45]Carbon oxygen.

[00:53:48]Carbon monoxide.

[00:53:54]in the carbon oxygen and then carbon dioxide.

[00:54:02]Okay, you can see here C H the secondary alcohol C double bond ketone. Okay.

[00:54:13]Primary alcohol.

[00:54:19]Secondary alcohol ketone.

[00:54:25]Condrogen.

[00:54:33]Okay. Clear. Super TNG preparation.

[00:54:40]So glycerol concentrated nitric acid react or in pres in presence of concentrated sulfuric acid tg which is glycerol we are doing the process called as nitration nitration. So nitration process tell me nitration process group correct nitration groupitute nitration.

[00:55:34]H2 H3 HNO3 nitric acid H2.

[00:55:43]So that group So 1 2 3x propane 1 2 3 try nitroxy propane product.

[00:56:12]Okay.

[00:56:14]Dehydration of glycerol. Glycerol.

[00:56:18]Dehydration reaction.

[00:56:21]When glycerol is heated with dehydrating agents such as glycerol concentrated sulfuric acid or KH4 one of the very very important reaction this This glycerol Acroline always count you need to add double bond there.

[00:57:14]Saponification very important reaction.

[00:57:18]repeat reaction right. Glycerol occurs in many natural fats and it is so far found in longchain fatty acid in the form of glyceris.

[00:57:31]Okay.

[00:57:35]Glycerol preparation from glycerateification reaction.

[00:57:45]So, CH2O C double bond O CH24 * CH3 CHO C bond O CH214 CH3 CH2 C bond CH24 CH3.

[00:58:12]Okay.

[00:58:14]in the group.

[00:58:27]Three Na 3 Na CH24 CH3 Na CH24 CH3 Cor CH2O CHO CH2O Okay.

[00:58:51]CH2O C HO CH2O moon hydrogen CH2O H C HO CH2O H So we get glycerol as the product. Okay. We get glycerol as the product. Okay.

[00:59:11]Yes. Preparation of glycol, glucose test, victim test. Okay. Okay. All naming reaction 11th.

[00:59:28]Okay.

[00:59:38]Clear.

[00:59:55]Do you have any doubts?

[01:00:15]Okay.

[01:00:16]Yeah. So, write the chemical equation for oxidation of ethylene glycol with periodic acid. Okay. So, glycol.

[01:00:42]So it is CH2 CH2 O H C H2 O H Okay, which is H IO4 hydraysis.

[01:01:10]Okay, you have to listen with full focus.

[01:01:30]in a product. So, CH2O CH2 O Okay. H I4 H4 H IO3 O H IO3 structure. Okay.

[01:02:04]Hi CH2 C2 H C O H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H C C H O 2 moles of formalihide two moles of formalihide Okay. Super.

[01:02:51]What are the test to differentiate ethanol and phenol?

[01:02:57]What are the Okay.

[01:03:18]Okay. So, what is the difference between ethanol and phenol?

[01:03:24]They can also ask us alcohol.

[01:03:34]So phenol.

[01:03:37]Okay.

[01:03:39]Ethanol or alcohol.

[01:03:42]Ethanol or alcohol.

[01:03:49]Okay.

[01:04:03]So first I'm reacting it with benzene diazonium chloride benzene benzene benzene dazonium chloride.

[01:04:31]So phenol we will be getting a red orange dye red orange coupling reaction but no reaction at all. No reaction.

[01:04:53]Okay.

[01:04:55]Okay.

[01:04:58]Second differentiation test. Neutral feric chloride.

[01:05:03]Okay.

[01:05:05]Neutral Fe3.

[01:05:11]Neutral purple color. Phenol will give me purple color. So ABCD conversions.

[01:05:37]Okay. Which is same again.

[01:05:47]No reaction at all. Third, sodium hydroxide.

[01:05:58]Sodium hydroxide.

[01:06:03]What we will be getting?

[01:06:06]Sodium phenoxide.

[01:06:10]Sodium phenoxide.

[01:06:18]Same. No reaction. Okay. So these are all the difference between phenol and then alcohol.

[01:06:30]What is bromination of any?

[01:06:35]Bromination of any class.

[01:06:47]Okay. Yeah. So what is anol? What is anol?

[01:06:53]benzene ring benzene ring O3 group I'm taking broine in presence of acidic condition CH3 Cic acidy benzene.

[01:07:27]This is orthopit.

[01:07:53]This is bro anol.

[01:08:00]Okay. And then broine groupitute.

[01:08:05]So this is par bro anol.

[01:08:13]This is parab bromo anisole.

[01:08:18]Okay. So, bromination of anisole. Do you have any doubts?

[01:08:26]Do you have any doubts?

[01:08:30]Okay.

[01:08:32]Next reaction.

[01:08:34]What are the uses of Okay, first volatile starting fuel. Okay, volatile starting fuel.

[01:09:05]Hey, are you all listening or not?

[01:09:09]BMW BMW Hallelujah.

[01:09:28]Hallelujah.

[01:09:50]Okay, listening. Don't chat with yourself.

[01:10:00]Okay.

[01:10:06]Okay.

[01:10:08]Yeah.

[01:10:17]Okay. So starting fuel and then we are using it as a we are using it as a solvent extraction.

[01:10:36]Okay. So reactions Solvent.

[01:10:50]Extraction.

[01:10:52]Anesthesia.

[01:10:55]Anesthesia.

[01:11:11]Okay.

[01:11:24]Okay.

[01:11:26]Refrigerant.

[01:11:34]Okay. So refrigerant.

[01:11:37]Okay. So these are all the uses of dile.

[01:11:43]What are all the uses of glycerol?

[01:11:49]Glycerol.

[01:12:02]1 minute.

[01:12:25]Hallelujah.

[01:13:43]Okay.

[01:13:44]Yeah.

[01:13:48]Artificial sweetening agent.

[01:13:52]Okay.

[01:14:01]Okay. Sweetness.

[01:14:06]Artificial sweetening agent.

[01:14:10]Cosmetic products.

[01:14:15]Cosmetic products.

[01:14:19]Transparent soap.

[01:14:27]Transparent soap.

[01:14:30]Okay. Printing ink.

[01:14:33]Printing ink.

[01:14:43]Okay.

[01:14:46]Any anything else?

[01:14:48]Lubricant in clocks and watches lubricant in clocks watches.

[01:15:14]Okay.

[01:15:17]China that will become a explosive. Okay, don't worry. Okay, China.

[01:15:38]This will become a explosive auto oxidation of ether. Okay. So what is this auto oxidation of ether oxidation?

[01:16:03]Okay.

[01:16:07]CH3 CH2 CH2 CH3 oxidation oxygen.

[01:16:54]Oxidation, CH3, CH2, O inner oxygen in oxygen C H2 mixture of two.

[01:17:30]Okay.

[01:17:32]oxygen the second variant mixture of second compound.

[01:17:46]So CH3 CH2 C W H Okay.

[01:18:12]11th class, 12th class.

[01:18:16]11 Hallelujah.

[01:19:10]Yeah.

[01:19:23]It is getting delayed.

[01:19:32]group it is there but wait okay are you there listening okay so so we get two mixture of these two products Okay.

[01:20:08]Okay.

[01:20:15]Do you have any doubts?

[01:20:19]Do you have any doubts?

[01:20:28]Yes.

[01:20:40]No doubts, right?

[01:20:43]Okay. Super. So, we can end the live now.

[01:20:52]Okay. Okay.

[01:20:57]You can go and watch that. Okay.

[01:21:04]Okay.

[01:21:09]Live. Here you have the live.

[01:21:13]Okay.

[01:21:19]4 days ago. Chapter 11. most most top 20 reactions.

[01:21:32]This is very very important naming.

[01:21:40]Okay.

[01:21:42]So, do you have any other doubts?

[01:22:01]Okay.

[01:22:12]Okay.

[01:22:16]So, how are you going to prepare?

[01:22:25]Okay.

[01:22:28]Okay.

[01:22:30]Bye-bye.