Question

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

Column I		Column II
(A)	$\Delta H_{mix} = 0$, $\Delta V_{mix} = 0$	(i)	Non-ideal solution
(B)	$\Delta H_{mix} \ne 0$, $\Delta V_{mix} \ne 0$	(ii)	Positive deviation
(C)	$\Delta H_{mix} < 0$, $\Delta V_{mix} < 0$	(iii)	Ideal solution
(D)	$\Delta H_{mix} > 0$, $\Delta V_{mix} > 0$	(iv)	Negative deviation

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

Answer 1

Answer: (B)

(A) $\Delta_{\min } H =0, \Delta_{\min } V =0 \longrightarrow $ ideal solution
(B) $\Delta_{\text {mix }} H \neq 0, \Delta_{\text {mix }} V \neq 0 \longrightarrow $ Non-ideal solution
(C) $\Delta_{\text {mix }} H <0, \Delta_{\text {mix }} V <0 \longrightarrow $ Negative deviation
(D) $\Delta_{\text {mix }} H >0, \Delta_{\text {mix }} V >0 \longrightarrow $ Positive deviation.