Question

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

	Column I		Column II
(A)	$CH_{4(g)} + 2O_{2(g)} \rightarrow CO_{2(g)} + 2H_{2}O$	(i)	$\Delta_{sol}H^{o}$
(B)	$H_{2(g)} \rightarrow 2H_{(g)}$	(ii)	$\Delta_{lattice}H^{o}$
(C)	$NaCl_{(s)} \rightarrow N{a^{+}}_{(g)} + C{l^{-}}_{(g)}$	(iii)	$\Delta_{c}H^{o}$
(D)	$NaCl_{(s)} \rightarrow N{a^{+}}_{(aq)} + C{l^{-}}_{(aq)}$	(iv)	$\Delta_{bond}H^{o}$

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

Answer 1

Answer: (D)

(A)$\rightarrow$ (iii), (B)$\rightarrow$ (iv), (C)$\rightarrow$ (ii), (D)$\rightarrow$ (i)

Answer 2

: (1): $CH_{4(g)} + 2O_{2(g)} \rightarrow CO_{2(g)} + 2H_{2}O$ shows combustion reaction.

(2): $H_{2(g)} \rightarrow 2H_{(g)}$ shows bond dissociation.

(3): $NaCl_{(s)} \rightarrow N{a^{+}}_{(g)} + C{l^{-}}_{(g)}$ shows dissociation of NaCl.

(4): $NaCl_{(s)} \rightarrow N{a^{+}}_{(aq)} + C{l^{-}}_{(aq)}$ shows dissolution of Nacl.