Chemistry NCERT Exemplar Solutions Class 12th Chapter One

The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to:

Which technique among the following is most appropriate in separation of a mixture of 100mg of p-nitrophenol acid  and picric acid?

 + CH₄  --> A + B

A and B in the above atmosphere reaction step are:

The dark purple colour KMnO₄ disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is:

Which of the given reactions is not an example of disproportionation reaction?

Borazine, also known as inorganic benzene, can be prepared by the reaction of 3-equivalents of “X” with 6-equivalents of “Y”. 'X' and “Y”, respectively are:

Reaction of BeCl₂ with LiAlH₄ gives:

(A) AlCl₃

(B) BeH₂

(C) LiH

(D) LiCl

(E) BeAlH₄

Choose the correct answer from options given below:

Which of the following can be used to prevent the decomposition of H₂SO₄?

Refining using liquation method is the most suitable for metals with:

Given two statements below:

Statement I : In Cl₂ molecules the covalent radius is double of the atomic radius of chlorine.

Statement II : Radius of anionic species is always greater than their parent atomic radius.

Choose the most appropriate answer from options given below: