Ncert Solutions Chemistry Class 12th

Statement – I : hcp and ccp structure are equally efficient.

Statement – II : Same number of atoms are present in a hcp and ccp unit cell.

In the light of above statement choose the correct option among the following.

Correct IUPAC name of the following compounds is

Estimation of nitrogen using Kjeldahl's method is applicable to

Compound A having molecular formula $C_9{H}_{10}{O}_2$ on reaction with dilute $HCl$ gives compound $X$   and $Y.X$ evolves $C{O}_2$ on reaction with aqueous $NaHC{O}_3$  and $Y$ gives yellow precipitate on reaction with $I_2/NaOH$ . Structure of compound $A$  is

Statement – I : Phenol is converted to benzene on heating with zinc dust.

Statement – II: Chromic acid oxidises phenol to benzoquinone.

In light of the above statements, choose the correct answer.

Consider the following reaction sequence

The compound which is most easily soluble in aqueous alkali is

Which of the following is not a common component of photochemical smog?

When $Mn{O}_2$ is fused with potassium hydroxide in presence of $KN{O}_3$ , the deep green compound obtained is

Consider the following statements

(I)  Histamine is a potent vasodilator

(II) Brompheniramine is an antihistamine

(III) Tranquilizers and analgesics are neurologically active drugs

The correct statements among the following are