Question

Which of the following compounds does not give a precipitate with excess of NaOH? 1) ZnSO4 2) FeSO4 3) AgNO3 4) HgCl2

Answer 1

Answer:

ZnSO4

Explanation:

ZnSO4 react with  NaOH and form Zn(OH)2 but as NaH is excess,

i again react to form Na2Zn02 which is soluble

Answer 2

Explanation:

I hope that this answer will help you