Identify X.

Consider the following set of reactions :

CH₃COOH $\stackrel{{\mathrm{SOCl}}_2}{\to }$A $\underset{\mathrm{Anhydrous} {\mathrm{AlCl}}_3}{\overset{\mathrm{Benzene}}{\to }}$ B $\stackrel{\mathrm{HCN}}{\to }$ C $\stackrel{\mathrm{HOH}}{\to }$ D

The structure of D would be

What will be compound A in the following reaction?

C(CH₃)₃CH = CH₂ $\underset{\left(\mathrm{ii}\right) {\mathrm{NaBH}}_4, \mathrm{NaOH}}{\overset{\left(\mathrm{i}\right) \mathrm{Hg}({\mathrm{OOCCH}}_3{)}_2/ \mathrm{THF}}{\to }}$ A

What is the name of the following reaction?

PhCHO + (CH₃CO)₂O $\stackrel{\mathrm{Na}(\mathrm{OAc}{)}_2}{\to }$ PhCH = CHCO₂H

• Oxymercuration demercuration reaction

• Cannizzaro reaction

• Knoevenagel's reaction

• Perkin reaction

Which one of the following does not give white precipitate with acidified silver nitrate solution?

• 

• CH₂ = CH - Cl

• CH₂ = CH - CH₂ - Cl

• Both (a) and (b)

Oil used as frothing agent in froth-floatation process is

• pine oil

• mustard oil

• coconut oil

• olive oil

257.

In the presence of ether , 2-choloropropane reacts with sodium and form :

• n-hexane

• 2 , 3 - dimethyl butane

• n - hexene

• CH₃$—$CH$=$CH₂

The product of reaction between chloroform and acetone is used as :

• insecticide

• analgesic

• hypnotic

• war gas

The product formed by the reaction between acetylene and HOCl :

• ethylene chloride

• vinyl chloride

• dichloro acetaldehyde

• ethyledene chloride

R-X $\stackrel{Reagent}{\to }$ R-NO₃ , for the completion of the reaction suitable reagent is :

• NO₂

• NaNO₂

• AgNO₂

• NaNO₂ + dil. HCl