Using your understanding of conjugate acids and bases pick the correct statement from the multiple choices. a) hcnh+ is the conjugate base of hcn. b) nh2- is the conjugate acid of nh3. c) hpo42- is the conjugate base of hpo42-. d) so42- is the conjugate base of h2so4. e) haso32- is the conjugate acid of aso33-.

Option (e) is correct

Explanation:

According to definition of acid-conjugate base or base-conjugate acid pair-

if HA is an acid then is it's conjugate base

if B is a base then is it's conjugate acid

a) HCN is an acid . So, is it's conjugate base

b) is a base. So, is it's conjugate acid

c) Conjugate base of is

d) is the conjugate base of

e) is the conjugate acid of

So, option (e) is correct

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2