Question

Match the reactants in List-I with the products in List-II.

	List I		List II
A	$H_{2}O+H_{2}S$	i	$\left(H_3{O}^{+},H{S}^{-}\right)$
B	$H_{2}O+N^{3-}$	ii	$\left(N{H}_3,O{H}^{-}\right)$
C	$H_{2}O+SiC{l}_4$	iii	$\left(O{H}^{-},H_3{S}^{+}\right)$
D		iv	$\left(Si{O}_2,HCl\right)$
		v	$\left(Si{O}_4^{4-},C{l}_2\right)$
		vi	$\left(O_2,F^{-}\right)$
		vii	$\left(HF,O{H}^{-}\right)$
		viii	$\left(O{H}^{-},H{N}_3\right)$

The correct answer is

• A. $A\to (i),B\to (viii),C\to (v),D\to (vi)$
• B. $A\to (iii),B\to (ii),C\to (v),D\to (vii)$
• C. $A\to (iii),B\to (viii),C\to (iv),D\to (vii)$
• D. $A\to (i),B\to (ii),C\to (iv),D\to (vi)$

Answer 1

Answer: (D)

The reaction equations for the given reactants are:

(a) $H_{2}O+H_{2}S⟶H{S}^{-}+H_3{O}^{+}$

(b) $3H_{2}O+N^{3-}⟶N{H}_3+3O{H}^{-}$

(c) $2H_{2}O+SiC{l}_4⟶Si{O}_2+4HCl$

(d) $H_{2}O+F_2⟶2HF+\frac{1}{2}{O}_2$

$⟶2H^{+}+2F^{-}+\frac{1}{2}{O}_2$