Chemical Properties of Amines

Q. Reaction of carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:

1. hydrocyanic acid
2. sodium hydrogen sulphite
3. a Grignard reagent
4. hydrazine in presence of feebly acidic solution

Q. The compound that produces an oily nitrosoamine on reaction with aq. HONO at low temperature is:

1. Triethylamine

2. Diethylamine

3. Ethylamine

4. Methylamine

Q. What will be the final product when ethylamine is oxidised with KMnO₄, in acidic medium.

1. An acid
2. An alcohol
3. A nitro compound
4. An aldehyde

Q. The foul smell produced during the carbylamine test and mustard oil test for primary amines are due to the formation of &
, respectively.

1. isocyanides
2. isothiocyanates
3. dithiocarbamic acid
4. isocyanates

Q. What will be the product of the benzoylation of aniline?

1. Benzylamine
2. Diphenylamine
3. Phenyl benzoate
4. Benzanilide

Q. p-Chloroaniline and anilinium chloride can be distinguished by:

1. Sandmeyer reaction
2. $NaHC{O}_3$
3. $AgN{O}_3$
4. Carbylamine test

Q. $C{H}_{3}COCl$ is used to detect the number of amino groups in organic compounds. When a saturated polyamino compound (containing only C, H and N as primary amine) of molecular mass 161 is completely acetylated, it gives a compound of molecular mass 371. Find the total number of atoms per molecule.

Q.

Which of the following leads to carbon -carbon double bond?

1. $1^{\circ }Amine+RCHO\to$

2. $2^{\circ }Amine+R_{2}CO\to$

3. $2^{\circ }Amine+RCHO\to$

4. both b & c

Q. When nitrobenzene is made to react with Zinc dust and $N{H}_{4}Cl$, the product is

1. 3-nitroaniline
2. phenylhydroxylamine
3. aniline
4. None of the above

Q. Choose the correct order of reagents to be added for the following conversion:
$C_6{H}_5{\mathrm{CH}}_2\mathrm{Cl}\stackrel{\left(i\right)}{\to }{C}_6{H}_5{\mathrm{CH}}_2\mathrm{CN}\stackrel{\left(\mathrm{ii}\right)}{\to }{C}_6{H}_5{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{NH}}_2\underset{\Delta }{\overset{\left(\mathrm{iii}\right)}{\to }}{C}_6{H}_5{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{NC}$

1. $\left(i\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH},\left(\mathrm{ii}\right)H_2/\mathrm{Pd},\left(\mathrm{iii}\right)\mathrm{KCN}/\mathrm{EtOH}$
2. $\left(i\right)\mathrm{KCN}/\mathrm{EtOH},\left(\mathrm{ii}\right)H_2/\mathrm{Pd},\left(\mathrm{iii}\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH}$
3. $\left(i\right)H_2/\mathrm{Pd},\left(\mathrm{ii}\right),\mathrm{KCN}/\mathrm{HCl}\left(\mathrm{iii}\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH}$
4. $\left(i\right)\mathrm{KCN}/\mathrm{HCl},\left(\mathrm{ii}\right){\mathrm{CHCl}}_3/\mathrm{alc}.\mathrm{KOH},\left(\mathrm{iii}\right)H_2/\mathrm{Pd}$