Question

Match the following species with the corresponding conjugate acid.

Species		Conjugate acid
(i)	${NH}_3$	(a)	${CO}_3^{2-}$
(ii)	${HCO}_3^{-}$	(b)	${NH}_4^{+}$
(iii)	$H_{2}O$	(c)	$H_3{O}^{+}$
(iv)	${HSO}_4^{-}$	(d)	$H_2{SO}_4$
		(e)	$H_2{CO}_3$

• A. $(\mathrm{i})\to (\mathrm{e}),(\mathrm{ii})\to (\mathrm{a}),(\mathrm{iii})\to (\mathrm{b}),(\mathrm{iv})\to (\mathrm{c})$
• B. $(\mathrm{i})\to (\mathrm{b}),(\mathrm{ii})\to (\mathrm{e}),(\mathrm{iii})\to (\mathrm{c}),(\mathrm{iv})\to (\mathrm{d})$
• C. $(\mathrm{i})\to (\mathrm{c}),(\mathrm{ii})\to (\mathrm{d}),(\mathrm{iii})\to (\mathrm{b}),(\mathrm{iv})\to (\mathrm{a})$
• D. $(\mathrm{i})\to (\mathrm{b}),(\mathrm{ii})\to (\mathrm{d}),(\mathrm{iii})\to (\mathrm{e}),(\mathrm{iv})\to (\mathrm{a})$

Answer 1

Answer: (B)

$(i)\to (b),(ii)\to (e),(iii)\to (c),(iv)\to (d)$