Question

$$NaB{H_4} + {I_2} \to X + Y + Z$$
\[B{{F}_{3}}+NaH\xrightarrow{450\,K}X+P\]
$$B{F_3} + LiAl{H_4} \to X + Q + R$$
$$X, Y, Z, P, Q$$ and $$R$$ in the reactions are

$$X$$ $$Y$$ $$Z$$ $$P$$ $$Q$$ $$R$$

(a) $$N{a_4}{B_4}{O_7}$$ $$NaI$$ $$HI$$ $$HF$$ $$LiF$$ $$Al{F_3}$$

(b) $${B_2}{H_6}$$ $$NaI$$ $${H_2}$$ $$NaF$$ $$LiF$$ $$Al{F_3}$$

(b) $${B_2}{H_6}$$ $$B{H_3}$$ $$NaI$$ $${B_3}{N_3}{H_6}$$ $$A{l_2}{F_6}$$ $$Al{F_3}$$

(c) $$B{H_3}$$ $${B_2}{H_6}$$ $${H_2}$$ $${B_3}{N_3}{H_6}$$ $$LiF$$ $$Al{F_3}$$

A. (a)

B. (b)

C. (c)

D. (d)

Answer : (b)

Solution :
$$2NaB{H_4} + {I_2} \to \mathop {{B_2}{H_6}}\limits_{\left( X \right)} + \mathop {2NaI}\limits_{\left( Y \right)} + \mathop {{H_2}}\limits_{\left( Z \right)} $$
\[2B{{F}_{3}}+6NaH\xrightarrow{450\,K}\underset{\left( X \right)}{\mathop{{{B}_{2}}{{H}_{6}}}}\,+\underset{\left( P \right)}{\mathop{6NaF}}\,\]
$$4B{F_3} + 3LiAl{H_4} \to $$ $$\mathop {2{B_2}{H_6}}\limits_{\left( X \right)} + \mathop {3LiF}\limits_{\left( Q \right)} + \mathop {3Al{F_3}}\limits_{\left( R \right)} $$

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	$$X$$	$$Y$$	$$Z$$	$$P$$	$$Q$$	$$R$$
(a)	$$N{a_4}{B_4}{O_7}$$	$$NaI$$	$$HI$$	$$HF$$	$$LiF$$	$$Al{F_3}$$
(b)	$${B_2}{H_6}$$	$$NaI$$	$${H_2}$$	$$NaF$$	$$LiF$$	$$Al{F_3}$$
(b)	$${B_2}{H_6}$$	$$B{H_3}$$	$$NaI$$	$${B_3}{N_3}{H_6}$$	$$A{l_2}{F_6}$$	$$Al{F_3}$$
(c)	$$B{H_3}$$	$${B_2}{H_6}$$	$${H_2}$$	$${B_3}{N_3}{H_6}$$	$$LiF$$	$$Al{F_3}$$

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