CBSE > Class 12 > Chemistry | CBSE Board | Homework Help

Molar conductivity is defined as the conducting power of all the ions produced by dissolving one mole of an electrolyte in solution. It is denoted by (lambda). But if solution contains 1 gm mole of the electrolyte therefore, the measured conductance will be the molar conductivity.

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What is the three main difference between roults law and hanry's law?

Posted by Ayan Ansari 6 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Hardik Gupta 6 years, 2 months ago

Raoults law is for gases whereas henry law is for liquid liquid solution

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Pragati Gola 6 years, 2 months ago

Proportionality constant differ

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Colligative property

Posted by Anshul Shukla 6 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Ayan Ansari 6 years, 2 months ago

The property of solution which depends upon the number of solute particle

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Principle of leaching process

Posted by Rameswar Panigrahi 6 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhay Baranwal 6 years, 2 months ago

Leaching is used in the extraction of Aluminum metal by concentrating it from its ore..

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Why NN3 is gas while H2O is water?

Posted by Yadavv Technical 6 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Mohit Phour 6 years, 2 months ago

Due to absence of d orbital in N of NH3 so there is no repulsion of electrons as compair to H2O or NH3 have no lone pair to repal hydrogen atom

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Deeya Singh 6 years, 2 months ago

And we know that more the H-bonding more is the close packing of molecules

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Deeya Singh 6 years, 2 months ago

Hydrogen bonding in H2O is more intense and strong than in NH3 because one O of H2O can form 2 H-bonds with other molecules due to availability of 2 lone pairs. Whereas in NH3, there is only 1 lone pair over N therefore it forms only 1 H-bonds with other molecules

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What are the important topics in d and f block for exam?

Posted by Nikita Singh 6 years, 2 months ago

CBSE > Class 12 > Chemistry

7 answers

Řøhăň Řąjpůť ✌️✊ 6 years, 2 months ago

bus bhai yahi baat hai ???

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Šąhîł Phogat 6 years, 2 months ago

kya baat hai Rohan bhai. ? ? ?

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꧁≪Mämƭå ℭℏ۝ᑌĎℎàℜÿ? 6 years, 2 months ago

Thanks this answer even helped me

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Šąhîł Phogat 6 years, 2 months ago

aphavaaha nhi hai bro reality bolte hai isey. fb par hai tu?

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Řøhăň Řąjpůť ✌️✊ 6 years, 2 months ago

no bro kon hai Jo aphavaaha faila ra hai ???

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Šąhîł Phogat 6 years, 2 months ago

gud one bro..I think u have completed ur whole syllabus. ????

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Řøhăň Řąjpůť ✌️✊ 6 years, 2 months ago

look according to my schl chemistry paper they are repeating question based on chemical properties of d-block elements, similarity and difference between lanthanoids and Actinoids Elements and characteristics of d-block elements.

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Chemistry investigatory project available nahi h kya

Posted by Gaurav Sen 6 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Šąhîł Phogat 6 years, 2 months ago

yup as usual he is r8... ?

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Řøhăň Řąjpůť ✌️✊ 6 years, 2 months ago

it's available on slide share

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What is Ostwald and solvay process

Posted by Khushi Singh 6 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Deeya Singh 6 years, 2 months ago

The Ostwald process is a chemical process that in two stages, converts ammonia to nitric acid (also known as HNO3). In the process for step 1, ammonia is oxidized to form nitric oxide and also nitrogen dioxide. Then in step 2, the nitrogen dioxide that was formed is absorbed in water. The Solvay process is an industrial process that uses limestone (CaCO3 ) to produce carbon dioxide (CO2 ) which reacts with ammonia (NH3 ) dissolved in brine (concentrated NaCl(aq)) to produce sodium carbonate.

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How will you prepare tert. Butyl alcohol from acetic acid

Posted by Vikas Choudhary 6 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Deeya Singh 6 years, 2 months ago

First of all, treat acetic acid with Ca(OH)2, then what you get is acetone. Then treat acetone with CH3MgBr and you will get tertiary butyl alcohol

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Cleaning action of soap and detergent

Posted by Priyanshu Raz Vkf 6 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Darzen process

Posted by Neeraj Yadav 6 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Deeya Singh 6 years, 2 months ago

Which darzen? Darzen Halogenation or Darzen Reaction? Because there are two reactions with same name

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Pragati Gola 6 years, 2 months ago

ROH + SOCl2 ------ RCl + SO2(g) + HCl(g)

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The type of hybrid orbital used by S atom in SF4 is

Posted by Rajshwa Pal 6 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Deeya Singh 6 years, 2 months ago

sp3d

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Ethers are cleaved only by acids and not by bases.

Posted by Šąhîł Phogat 6 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Deeya Singh 6 years, 2 months ago

Your welcome ?

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Šąhîł Phogat 6 years, 2 months ago

thanks Deeya ?

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Deeya Singh 6 years, 2 months ago

Acid donate a proton to the oxygen atom of ether to form oxonium ion. After the formation of oxonium ion cleavage of c-o bond takes place and form respective alkyl halide and alcohol. But with bases there is no formation of such kind of ions. Hence ethers can be cleaved with acids not with bases.

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What is solution?

Posted by Ramesh Ghimerey 6 years, 2 months ago

CBSE > Class 12 > Chemistry

4 answers

Anchal Maurya 6 years, 2 months ago

Solution is homogenous mixture of two or more than two components

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Ayan Ansari 6 years, 2 months ago

Solution is a homogeneous mixture of two or more than two components in which less amount compound is solute and large amount components is solvent

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Saheb Ok 6 years, 2 months ago

A solution is a homogeneous mixture of two or more components in which one is solute while the other one is solvent

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Aryan Maurya 6 years, 2 months ago

It ia mixture of solvent and solute which gives solution.

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Notes on recepter as drug target

Posted by Sheikh Sahmad Ali 6 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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Explain abnormal molecular mass in detail

Posted by Nishi Soni 6 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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What happen when Chloroform added to HNO3?

Posted by Santy Baralu 6 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Nishi Soni 6 years, 2 months ago

Ortho and para nitro chlorobenzene is formed

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Show that vectors a,b,c are coplanar if vector a+vector b,vector b+vector c ,vector c+vector a are coplanar.

Posted by Ashish Choubey 6 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

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In a leclanche cell, MnO2 acts as_______

Posted by Kashish Khatana 6 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Hemank Mittal 6 years, 2 months ago

In leclanche cell, MnO2 acts as DEPOLARISER.

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What is Marconikov's rule

Posted by Khushi Singh 6 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Ayan Ansari 6 years, 2 months ago

Acc. To markonikov rule the negative part of hydrogen halide goes to that part of unsaturated hydrocarbon which have less no. Of hydrogen atoms Are you understand Ok Follow me on Instagram 'ayan70584'

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Yogita Ingle 6 years, 2 months ago

Markovnikov's rule: When an unsymmetrical alkene reacts with a hydrogen halide to give an alkyl halide, the hydrogen adds to the carbon of the alkene that has the greater number of hydrogen substituents, and the halogen to the carbon of the alkene with the fewer number of hydrogen substituents.

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Kashish Khatana 6 years, 2 months ago

The negative part of reagent will attached to that carbon which has less number of hydrogen

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What is vant hoff factor how vant hoff factor calculated

Posted by Ayan Ansari 6 years, 2 months ago

CBSE > Class 12 > Chemistry