Question

Four species are listed below :
i. HCO₃⁻ ii. H₃O⁺ iii. HSO₄⁻ iv. HSO₃F
Which one of the following is the correct sequence of their
acid strength?
(a) iv < ii < iii < i (b) ii < iii < i < iv
(c) i < iii < ii < iv (d) iii < i < iv < ii

Answer 1

Explanation:

Acidic nature \propto∝ More negative charge on cemtral atom

So answer is (b)

Answer 2

Explanation:

Four species are listed below :

i. HCO₃⁻ ii. H₃O⁺ iii. HSO₄⁻ iv. HSO₃F

Which one of the following is the correct sequence of their

acid strength?

(a) iv < ii < iii < i (b) ii < iii < i < iv✔️

(c) i < iii < ii < iv (d) iii < i < iv < ii