Question

Of the following acids
I: hypo phosphorous acid
II: hydrofluoric acid
III: oxalic acid
IV: glycine

• A. I, II are monobasic: III dibasic acid and IV amphoteric
• B. II monobasic: I, III dibasic acid: IV amphoteric
• C. I monobasic, II, III dibasic, IV amphoteric
• D. I, II, III dibasic: IV amphoteric

Answer 1

Answer: (C)

I. $H_{2}P{O}_2$ is monobasic acid forming $Na{H}_{2}P{O}_2$
II. $H_2{F}_2$ forms two series of salts $KH{F}_2$ and $K_2{F}_2$
Thus, dibasic acid
III. $H_2{C}_2{O}_4$ is dibasic acid