Question

Ques 4: Write the formula of following compounds by showing the valency of ions- (a) Aluminium Sulphate (b) Calcium Hydroxide​

Answer 1

Explanation:

1)Aluminium sulphate formula- Al2(SO4)3

valency ions for aluminium- (3)

vency ions for sulphate- (2)

1)Calcium Hydroxide formula-Ca(OH)2

valency ions for calacium-(2)

valency ions for hydroxide-(1)