Ncert Solutions Chemistry Class 12th

The nature of oxides V₂O₃ and CrO is indexed as ' X' and 'Y' type respectively. The correct set of X and Y is:

In the following sequence of reaction the P is:

The structure of the starting compound P used in the reaction given below is:

The correct statement about (A), (B), (C) and (D) is:

The gas 'A' is having very low reactivity reaches to stratosphere. It is non-toxic and non-flammable but dissociated by UV-radiations in stratosphere. The intermediates formed initially from the gas 'A' are:

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Synthesis of ethyl phenyl ether may be achieved by Williamson synthesis.

Reason (R): Reaction of bromobenzene with sodium ethoxide yields ethyl phenyl ether.

In the light of the above statements, choose the most appropriate answer from the options given below:

In the following sequence of reactions, the final product D is:

The major product of the following reaction is

The novolac polymer has mass of 963g. The number of monomer units present in it are