Question

Identify $$X, Y$$  and $$Z$$ in the given reaction :
\[C{{H}_{2}}=C{{H}_{2}}\xrightarrow[CC{{l}_{4}}]{B{{r}_{2}}}X\]     \[\xrightarrow[\left( 2\,\text{moles} \right)]{NaCN}Y\xrightarrow{LiAl{{H}_{4}}}Z\]
$$X$$ $$Y$$
(a) $$C{H_2}BrC{H_2}Br$$ $$C{H_3}C{H_2}C{H_2}CN$$
(b) $$C{H_2}BrC{H_2}Br$$ $$C{H_3}C{H_2}CN$$
(c) $$C{H_3}C{H_2}Br$$ $$C{H_3}C{H_2}CN$$
(d) $$C{H_2}BrC{H_2}Br$$ $$NCC{H_2}C{H_2}CN$$

A. (a)
B. (b)
C. (c)
D. (d)  
Answer :   (d)
Solution :
\[C{{H}_{2}}=C{{H}_{2}}\xrightarrow[CC{{l}_{4}}]{B{{r}_{2}}}\]    \[\underset{\left( X \right)}{\mathop{BrC{{H}_{2}}-C{{H}_{2}}Br}}\,\xrightarrow{2NaCN}\]
\[\underset{\left( Y \right)}{\mathop{NCC{{H}_{2}}C{{H}_{2}}CN}}\,\xrightarrow{LiAl{{H}_{4}}}\]      \[\underset{\begin{smallmatrix} \left( \text{1, 4- Diaminobutane} \right) \\ \left( Z \right) \end{smallmatrix}}{\mathop{{{H}_{2}}NC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}}}\,\]

Releted MCQ Question on
Organic Chemistry >> Organic Compounds Containing Nitrogen

Releted Question 1

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

A. methylamine
B. ethylamine
C. diethylamine
D. triethylamine
Releted Question 2

Acetamide is treated separately with the following reagents. Which one of these would give methylamine?

A. $$PC{l_5}$$
B. $$NaOH + B{r_2}$$
C. soda lime
D. hot conc. $${H_2}S{O_4}$$
Releted Question 3

Carbylamine test is performed in alcoholic \[KOH\]  by heating a mixture of :

A. chloroform and silver powder
B. trihalogenatedmethane and a primary amine
C. an alkyl halide anda primary amine
D. an alkyl cyanide and a primary amine
Releted Question 4

The compound that is most reactive towards electrophilic nitration is :

A. toluene
B. benzene
C. benzoic acid
D. nitrobenzene

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Organic Compounds Containing Nitrogen


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