Q. 165.0( 3 Votes )

(i) The valency of carbon is 4 and that of chlorine is 1. What will be the formula of carbon tetrachloride?

(ii) The valency of an element X is 1 and that of oxygen is 2. What will be the formula of the compound formed by the combination of element X with oxygen?

Answer :

i. Given:


Valency of carbon is 4


Valency of chlorine is 1


By applying criss-cross method:



Formula: CCl4


Thus, the formula for carbon tetrachloride is CCl4.


ii. Given:


Valency of element X is 1


Valency of oxygen is 2


By applying criss-cross method:



Formula: X2O


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