Question

Match the column $I$ with column $II$ and mark the appropriate choice.

Column I		Column II
(A)	$C{H}_{4\left(g\right)}+2O_{2\left(g\right)}\to C{O}_{2\left(g\right)}+2H_{2}O$	(i)	${\Delta }_{sol}{H}^{\circ }$
(B)	$H_{2\left(g\right)}\to 2H_{\left(g\right)}$	(ii)	${\Delta }_{lattice}{H}^{\circ }$
(C)	$NaC{l}_{\left(s\right)}^{}\to N{a}_{\left(g\right)}^{+}+C{l}_{\left(g\right)}^{-}$	(iii)	${\Delta }_c{H}^{\circ }$
(D)	$NaC{l}_{\left(s\right)}^{}\to N{a}_{\left(aq\right)}^{+}+C{l}_{\left(aq\right)}^{-}$	(iv)	${\Delta }_{bond}{H}^{\circ }$

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

Answer 1

Answer: (D)

$(A):C{H}_{4(g)}+2O_{2(g)}\to C{O}_{2(g)}+2H_{2}O$
shows combustion reaction.
$(B):H_{2(g)}\to 2H_{(g)}$ shows bond dissociation.
$(C):NaC{l}_{(s)}\to N{a}_{(g)}^{+}+C{l}_{(g)}^{-}$
shows dissociation of $NaCl$.
$(D):NaC{l}_{(s)}N{a}_{(aq)}^{+}+C{l}_{(aq)}^{-}$
snows dissolution of $NaCl$.