Question

M is a bivalent metal. Write down the steps to find the chemical formulae of its compounds formed with the radicals, sulphate and phosphate.

Answer 1

M is a bivalent metal. Following are the steps to find the chemical formulae of its compounds formed with the radicals, sulphate and phosphate:

(i) Compound of metal ‘M’ with radical sulphate 

Step – 1: To write the symbols of the radicals (Basic radicals on the left and acidic radicals on the right) 

M SO₄

Step – 2: To write the valency below the respective radical.

Step – 3: To cross multiply as shown by arrows the number of radicals.

Step – 4: To write down the chemical formula of the compound.

M SO₄

(ii) Compound of metal ‘M’ with radical phosphate. 

Step – 1: To write the symbols of the radicals (Basic radicals on the left and acidic radicals on the right)

M PO₄

Step – 2: To write the valency below the respective radical.

Step – 3: To cross multiply as shown by arrows the number of radicals.

Step – 4: To write down the chemical formula of the compound.

M₃ (PO₄)₂