The compound which on reaction with aqueous nitrous acid at low temperature produces an oily nitrosoamine is

• methyl amine

• ethyl amine

• diethyl amine

• triethyl amine

Hofmann's bromamide reaction is used to convert :

• acid to alcohol

• alcohol to acid

• amide to amine

• amine to amide

Compound A (molecular formula C₃H₈O) is treated with acidified potassium dichromate to form a product B (molecular formula C₃H₆O). B forms a shining silver mirror on warming with ammoniacal silver nitrate. B when treated with an aqueous solution of H₂NCONHNH₂. HCl and sodium acetate gives a product C. Identify the structure of C.

• CH₃CH₂CH=NNHCONH₂

• CH₃-C(CH₃)=NNHCONH₂

• CH₃-C(CH₃)=NCONHNH₂

• CH₃CH₂CH=NCONHNH₂

Which of the following fibres is not made up of polyamides ?

• Wool

• Natural silk

• Artificial silk

• Nylon

The high oxidising power offluorine is due to :

• high electron affinity

• high heat of dissociation and low heat of hydration

• high heat of hydration and low heat of dissociation

• high heat of hydration and high heat of dissociation

Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and thenheated with cuprous bromide. The reaction mixture so formed contains

• mixture of o- and m-bromotoluenes

• mixture of o- and p-bromotoluenes

• mixture of o- and p-dibromobenzenes

• mixture of o- and p-bromoanilines

707.

Identify the 'C' in the reaction :

RNH₂ $\stackrel{{\mathrm{HNO}}_2}{\to }$ A + B + C$\uparrow$

• NH₃

• O₂

• N₂

• CO₂

The reaction of an organic compound with ammonia followed by nitration of the product gives a powerful explosive called ROX.The organic compound is

• phenol

• toluene

• glycerine

• formaldehyde

CH₃Br + KCN (alco.) $\to$ X $\underset{\mathrm{Na} + {\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}}{\overset{\mathrm{Reduction}}{\to }}$ Y

What is Y in the series ?

• CH₃CN

• C₂H₅CN

• C₂H₅NH₂

• CH₃NH₂

In the following sequence of the reactions, what is D ?

• Primary amine

• An amide

• Phenyl isocyanate

• A chain lengthed hydrocarbon