Q.
Which of the solution will be acidic?
(1) $0.1 \,M \,FeSO _{4}$
(2) $0.1 \,M \,\left( NH _{4}\right)_{2} SO _{4}$
(3) $0.1 \,M \,CH _{3} COONa$
(4) $0.1 \,M \,NH _{4} OH$
BHUBHU 2007
Solution: