Which of the following is the strongest acid? A.) HCNO (Ka for HCNO is 2*10^-5) B.)...

Question

Question

Which of the following is the strongest acid?

A.) HCNO (Ka for HCNO is 2*10^-5)

B.) HF (Ka for HF is 7.2*10^-4)

C.) H3BO3 (Ka for H3BO3 is 5.4*10^-10)

D.) HCN (Ka for HCN is 4.9*10^-10)

Answer 1

Answer #1

answer : B.) HF (Ka for HF is 7.2*10^-4)

explanation:

Ka value increases acidic character also increases.

Ka value is more for HF so it is strongest acid

acidity order:

HF > HCNO > H3BO3 > HCN

HCN Ka value is lesser. so it is weakest acid among four.

Answer 2

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