651.

Out of the compounds below the vapour pressure of (B) at a particular temperature is

                     

• higher than that of (A)

• lower than that of (A)

• higher or lower than (A), depending on the size of the vessel

• same as that of (A)

An oxygen containing organic compound upon oxidation forms a carboxylic acid as the only organic product with its molecular mass higher by 14 units. The organic compound is

• an aldehyde

• a primary alcohol

• a secondary alcohol

• a ketone

Phenol $\stackrel{\mathrm{X}}{\to }$ forms a tribromo derivative, 'X' is

• bromine in benzene

• bromine in water

• potassium bromide solution

• bromine in carbon tetrachloride at 0°C

The compound which gives turbidity immediately with Lucas reagent at room temperature is

• butan-1-ol

• butan-2-ol

• 2-methyl propan-2-ol

• 2-methyl propan-1-ol

The conversion of m-nitrophenol to resorcinol involves respectively

• hydrolysis, diazotization and reduction 

• diazotization, reduction and hydrolysis

• hydrolysis, reduction and diazotization

• reduction, diazotization and hydrolysis

HCHO was treated with a reagent X. The product formed upon hydrolysis in the presence of an acid gave C₂H₅OH. The reagent X is

• alcoholic KOH

• alcoholic KCN

• CH₃MgI

• aqueous KOH

Which one of the following is not formed when a mixture of methyl bromide and bromobenzene is heated with sodium metal in the presence of dry ether?

• diphenyl

• propane

• toulene

• ethane

Power alcohol is a mixture of

• 80% petrol + 20% ethanol + small quantity of benzene

• 80% ethanol + 20% benzene + small quantity of petrol

• 50% Petrol + 50% ethanol + small quantity of benzene

• 80% petrol + 20% benzene + small quantity of ethanol

Identify 'C' in the following

• ethanol

• propanone

• cumene hydroperoxide

• water

Which of the following is strongly acidic?

• Phenol

• o-cresol

• p-nitrophenol

• p-cresol