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Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve

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3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Aldehydes, Ketones and Carboxylic Acids

Consider the following reaction:

A + alkali  → B(Major Product)

If B is an oxoacid of phosphorous with no P-H bond, then A is
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P
Payal Gupta

Contributor-Level 10

P 4 + 3 N a O H + 3 H 2 O → P H 3 + 3 N a H 2 P O 2

R e d P + a l k a l i → H 4 P 2 O 6 ( N o     P − H     b o n d )

New answer posted

3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Aldehydes, Ketones and Carboxylic Acids

Given below are two statements:

Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilc acyl substitution.

Statement II: Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction

Choose the most appropriate option:
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alok kumar singh

Contributor-Level 10

It is an uncleophilic acyl substilution. While electron withdrawing group in carboxylic acid will increases the rate of esterification.

 

New answer posted

3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Aldehydes, Ketones and Carboxylic Acids

In C1H2=C2=C3H−C4H3 molecule, the hybridization of carbon 1,2,3 and 4 respectively are
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Payal Gupta

Contributor-Level 10

Consider the following image

New answer posted

3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Structure of Atom

Which of the following statements are correct?

           (A) The electronic configuration of Cr is [Ar] 3d54s1.

           (B) The magnetic quantum number may a negative value.

           (C) In the ground state of an atom, the orbitals are filled in order of their increasing energies.

           (D) The total number of nodes are given by (n-2)

           Choose the most appropriate answer

...more
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alok kumar singh

Contributor-Level 10

(A) Cr = [Ar]3d54s1

              (B) m =   − l     t o + l

              (C) According to Aufbau principle, orbital are filled in order of their increasing energies.

              (D) Total nodes = n – 1

New answer posted

3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Aldehydes, Ketones and Carboxylic Acids

Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is_______________.
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alok kumar singh

Contributor-Level 10

Kindly go through the solution

 

New answer posted

3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Aldehydes, Ketones and Carboxylic Acids

The correct decreasing order of priority of functional groups in naming an organic compound as per IUPAC system of nomenclature is
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A
alok kumar singh

Contributor-Level 10

Correct order of priority is

−SO3H>−COCl>−CONH2>−CN

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3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Surface Chemistry

Among the following the number of curves not in accordance with Freundlich adsorption isotherm is_________.
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V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

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3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Class 12th

Find out the major product for the below reaction.

 
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Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

New answer posted

3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Alcohols, Phenols and Ethers

Compound I is heated with Conc. HI to give a hydroxyl compound  A which is further heated with Zn dust to give compound B. Identify A and B.
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V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

New answer posted

3 months ago

Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve Haloalkanes and Haloarenes

The major product in given the reaction is
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V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

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