Question

Identify $$X$$ and $$Y$$ in the following reaction : \[BC{{l}_{3}}+N{{H}_{4}}Cl\xrightarrow[{{C}_{6}}{{H}_{5}}Cl]{{{140}^{\circ }}C}X\]      \[\xrightarrow{NaB{{H}_{4}}}Y\]

A. $$X = NaB{O_2},Y = {B_2}{O_3}$$
B. $$X = N{a_2}{B_4}{O_7},Y = {H_3}B{O_3}$$
C. $$X = BN,Y = {\left[ {N{H_4}} \right]^ + }{\left[ {BC{l_4}} \right]^ - }$$
D. $$X = {B_3}{N_3}{H_3}C{l_3},Y = {B_3}{N_3}{H_6}$$  
Answer :   $$X = {B_3}{N_3}{H_3}C{l_3},Y = {B_3}{N_3}{H_6}$$
Solution :
P - Block Elements mcq solution image

Releted MCQ Question on
Inorganic Chemistry >> P - Block Elements

Releted Question 1

The reddish brown coloured gas formed when nitric oxide is oxidised by air is

A. $${N_2}{O_5}$$
B. $${N_2}{O_4}$$
C. $$N{O_2}$$
D. $${N_2}{O_3}$$
Releted Question 2

The temporary hardness of water due to calcium carbonate can be removed by adding —

A. $$CaC{O_3}$$
B. $$Ca{\left( {OH} \right)_2}\,$$
C. $$CaC{l_2}$$
D. $$\,HCl$$
Releted Question 3

Which of the following is most stable to heat

A. $$HCl$$
B. $$HOCl$$
C. $$HBr$$
D. $$HI$$
Releted Question 4

White $$P$$ reacts with caustic soda. The products are $$P{H_3}$$ and $$Na{H_2}P{O_2}.$$   This reaction is an example of

A. Oxidation
B. Reduction
C. oxidation and reduction
D. Neutralisation

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