Question

Deduce the molecular formula of the compound obtain from the following

pairs of elements by the cross multiplication method. (2)

C (Valency 4) & O (Valency 2)​

Answer 1

C (Valency 4) & Cl (Valency 1):

Step 1 : Write the symbols of the radicals.

C Cl

Step 2 : Write the valency below the respective radical.

C Cl

4 1

Step 3 : Cross-multiply symbols of radicals with their respective valency.

Step 4 : Write down the chemical formula of the compound.

CCl

4

Answer 2

C (Valency 4) & Cl (Valency 1):

Step 1 : Write the symbols of the radicals.

C Cl

Step 2 : Write the valency below the respective radical.

C Cl

4 1

Step 3 : Cross-multiply symbols of radicals with their respective valency.

Step 4 : Write down the chemical formula of the compound.

CCl

4