Question

(c) aluminium
(d) cupric
9. (a) What is a chemical formula ? (b) What is the
significance of a formula ? Give an example to illustrate.
10. What do you understand by the following terms ?
(a) Acid radical (b) Basic radical
11. Select the basic and acidic radicals in the following
compounds.
(a) MgSO4
(b) (NH4)2SO,
(c) Al2(SO4)3
(d) ZnCo
(e) Mg(OH)2
12. Write chemical formulae of the sulphates of Aluminium,
Ammonium and Zinc.
13. The valency of an element A is 3 and that of element B
is 2. Write the formula of the compound formed by the
combination of A and B.​

Answer 1

Just a second

SORRY FOR INCOMPLETE ANSWERING.