Question

Classify the following as acid or base according to Bronsted-Lowry concept.
(i) $CH_3COO^-$
(ii) $H_3O^+$
(iii) $SO^{2-}_4$
(iv) $HCl$

	(i)	(ii)	(iii)	(iv)
(a)$\,\,$	Bronsted base$\,\,$	Bronsted base$\,\,$	Bronsted base$\,\,$	Bronsted acid$\,\,$
(b)$\,\,$	Bronsted acid$\,\,$	Bronsted acid$\,\,$	Bronsted acid$\,\,$	Bronsted base$\,\,$
(c)$\,\,$	Bronsted base$\,\,$	Bronsted acid$\,\,$	Bronsted base$\,\,$	Bronsted acid$\,\,$
(d)$\,\,$	Bronsted acid$\,\,$	Bronsted base$\,\,$	Bronsted base$\,\,$	Bronsted base

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (C)

Any species which can accept a proton is Bronsted base while which can give a proton is Bronsted acid.