11th Chemistry | 1st Midterm Top Important Questions Revision Part 1 | TN State Board | Prakash Sir

[00:00:22][music] Good morning, Mangla.

[00:00:38]Good morning. Good morning. Am I audible?

[00:00:45]Good morning.

[00:01:04]Good morning. Yes.

[00:01:11]Super audible.

[00:01:14]Very good.

[00:01:28]So over chapter by chapter important not all the question we are going to see it [snorts] will take time 45 minutes library last previous video.

[00:02:15]Seventh chapter. Yes. Yes. Yes. [snorts] 11th stand plus we are going to have some marathon on Saturday or Sunday.

[00:02:35]So four to five hours 3 to four hours.

[00:02:45][snorts] Second chapter.

[00:02:47]Second chapter.

[00:03:00]Right.

[00:03:02]We don't have time.

[00:03:12]So we have to study this.

[00:03:16]Seventh chapter.

[00:03:20]Seventh chapter.

[00:03:24]Let us start from chapter one.

[00:03:35]Right. [snorts] First defined relative atomic mass last year.

[00:04:03]Define relative atomic mass. Relative atomic mass. The relative atomic mass of element is defined as the ratio of mass of one atom of element to the mass of 1x 12 of mass of one carbon 12 atom.

[00:04:20]Ratio mass of one atom of the element atom divided by 1 by 12 of mass of one carbon atom. for division.

[00:05:10]12th 11th value it is 1.665 into 10 ^ - 27 kg so value 1.66 into 10 ^ - 27 kg 1.6605 6605 into 10^ minus 27 kg value [snorts] right.

[00:05:48]So you can expect this kind of question also.

[00:06:08]Just do one thing.

[00:06:18]description.

[00:06:20]First link. First all [snorts] the first ID So community we can see the community in the community.

[00:07:38]You will be asked to join uh 11th 12th 11th 12th free channel free channel. You will be asked to join 11th and state free. So joining you will be getting the PDF in the class on the spot.

[00:08:07]on [snorts] the spot in your wine club.

[00:08:09]On the spot, you can just get it.

[00:08:11][snorts] What is empirical formula?

[00:08:38]formula of the following.

[00:08:42]for the question.

[00:08:52]So C6 H26 C H2 C4 H10 N4 O2 O2 So C4 H5 N2 >> [snorts] >> C4 H5 N2.

[00:09:19][snorts] What is the difference between molecular mass and mass?

[00:09:39]Molecular mass is defined as ratio of mass of a molecule to the unified atomic mass. Right.

[00:09:54]Right.

[00:10:02]>> [snorts] >> Molecular mass is defined as the ratio of mass of a molecule to the unified atomic mass. Unified atomic mass.

[00:10:17]Molecular mass ratio. Molecular mass.

[00:10:20]Mass.

[00:10:30]They are going to tell that that is called mass. [snorts] molar mass.

[00:11:15]Molar mass is defined as the mass of one mole of a substance. Mass of one mole of substance.

[00:11:25]Right? Relative molecular mass of any compound is calculated by adding the relative atomic mass.

[00:11:32]Molecular mass H2 H2 H2 H2 plus oxygen mass is equal to the sum of relative atomic mass of its constant.

[00:12:11]Okay. Right.

[00:12:15][snorts] It unit is gus one g mous one mass of Example, [snorts] this is the example. [snorts] What is the limiting reagent?

[00:13:16]>> [snorts] >> What is limiting reagent? Okay. Limiting reaction.

[00:13:27][snorts] [laughter] Yes, it is a UPM limiting reagent when a reaction is carried out.

[00:14:04]When a reaction is carried out using non stochometric quantities Please stock.

[00:14:37]So it depends upon the quantity right [snorts] of the reactant of the reactant.

[00:14:52]The product yield will be determined by the reactant that is completely consumed.

[00:14:58]Now for example 3 A + 2 B gives 2 A 2 A 2 A 3 A + 2 B gives 2 for the further up. Proceed in the reaction complete in the reaction.

[00:15:58]2 B is the limiting reagent. 3 A + 2 B gives 2 A B [snorts] 3 A + 2 B equal to 2 A B. When a reaction is carried out using non stochometric quantities of reactant, the product yield will be determined by the reactant. Our product determined by the reactant that is completely consumed.

[00:16:41]>> [snorts] >> It limits the further reaction from taking place and it is called limiting reaction.

[00:16:55]Limiting reaction.

[00:16:58]Okay. Three complete reaction recepting reagent.

[00:17:28][snorts] >> [snorts] >> Hypothesis hypothesis equal volume of all gases.

[00:17:43]Equal volume of all gases under the same condition of temperature and pressure contain equal number of molecules.

[00:17:54]Gas G1, G2, G Temperature and pressure are same, right? Same temperature and same pressure.

[00:18:15]Same temperature and pressure, right?

[00:18:26]One gas. For example, volume equal that means V is equal equal to N.

[00:18:59][snorts] V= N. V is directly proportional to N. V is directly proportional to N. Volume is directly proportional to N.

[00:19:08]Okay. Right.

[00:19:19]for CO2, SO temperature and pressure.

[00:19:51]Number of particles, [snorts] right?

[00:20:11][snorts] Difference question.

[00:20:17]Oxidation and reduction. Addition of oxygen and hydrogen.

[00:20:34]So addition of oxygen rema so addition of oxygen addition of hydrogen rem of hydrogen remite oxygen.

[00:21:06]Loss of electron. Loss of electron. Gain of electron. Electation number.

[00:21:27]Oxidation number increases.

[00:21:35]2 oxidation depression. Depression [snorts] oxidation number decreases. Okay.

[00:22:07]Right. [snorts] Elect Fe 3+ electron.

[00:22:27]opposite Fe3+ electron gives Fe2 plus.

[00:22:42][snorts] Yes, oxygen.

[00:22:50][snorts] Okay. Define equivalent mass.

[00:23:06]The equivalent mass of an element. The equivalent mass element is the number of parts of mass of an element which combines with or displaces. which combines with our displace YouTube channel, YouTube 0.

[00:24:20][snorts] Join your friends.

[00:24:38]So use solid miss join [snorts] 11th 11th The equivalent mass of an element compound or is the number of parts of mass of an element which combine or replace combine or replace is going to be called as 1.8 Eight parts of hydrogen equivalent 8 g of oxygen 35.5 parts of chlorine Going to combine or replace. Going to combine or replace. going to combine or replace it.

[00:26:12][snorts] Right?

[00:26:17]Good. Very good. So equivalent equivalent one g equivalent minus one.

[00:26:30][snorts] What do you understand by the term oxidation number? Oxygen oxidation number refers to number of charges an atom would have in a molecule. Right?

[00:27:07]For example, uh [snorts] MN O4 minus for example H plus SO4 minus If electron were transferred completely the oxidation number reflect the number of electrons transferredus minus what is the meaning of this minus oneus meaning huh energy meaning gain of electron. Electron gain plus loss of electron Electation Oxygen.

[00:28:26]Oxygenator.

[00:28:33][snorts] [snorts] Oxidation number. Number refers to the number of charges an atom would have in a molecule.

[00:28:58]Number of charge oxidation number.

[00:29:00]Oxidation number.

[00:29:10]It's going to give number of electrons added or removed.

[00:29:25]Right. What is combination reaction?

[00:29:33][snorts] >> [snorts] >> Right. What is combination reaction?

[00:29:50]What is combination reaction?

[00:29:54]Combination reaction when two or more substance combine to form a single substance.

[00:30:10]When two or more substance combine to form a single substance, the reaction is combination reaction.

[00:30:22]Combination reaction.

[00:30:32]H2O plus O2 gives H2O.

[00:30:45][snorts] [music] Yes.

[00:30:49]What is decomposition reaction? What is decomposition reaction? Decomposition reaction.

[00:30:57]Right. Let's reaction.

[00:31:07]Example 2 H2O heat 2 H2 plus O2 we can write like this. [snorts] So chemical reaction in which compound splits into two or more simpler substance.

[00:31:42]Yes.

[00:31:53]>> [snorts] >> reverse.

[00:32:05]Disproportionation reaction.

[00:32:08]Disproportionation reaction.

[00:32:12]Disproportionation.

[00:32:23]Disproportionation reaction.

[00:32:33]Disproportion.

[00:32:36]Oxidation.

[00:32:38]Reduction. Oxidation.

[00:32:40]Addition of oxygen. reduction remain of electron. So disproportionation reaction for example disproportionation reaction reaction in which element undergo simultaneously simultaneously both oxidation and reduction are called disproportionation reaction. oxygen disproportionation reaction.

[00:33:17]For example, [snorts] CH methan methanel methanyl methanyl methanyl ah disproportionation reaction redux reaction methanyl methanol Oh, it's alcohol.

[00:34:15]Example, name right. So these are the top important questions in chapter one.

[00:34:48]Top important questions in chapter one.

[00:35:00]Master PDF. I will give you the master PDF.

[00:35:06]First, master PDF. Master PDF.

[00:35:14]So, it will be very useful for you.

[00:35:27]PDF library. It is a free group, free.

[00:35:45][snorts] Okay.

[00:36:00]Bye. Thank you.