S + conc. `H_2SO_4 rightarrow X+Y` here X is a gas and Y is a liquid and both are triatomic molecules. The number of electron lone pairs present on the central atoms of X and Y are respectively.

Options

A. 2,1
B. 2,2
C. 1,2
D. 1,0

Answer

C

Explanation

Answer(3) S + 2 Conc. `H_2SO_4 rightarrow 3SO_2 + 2H_2O`
`X rightarrow SO_2, Y rightarrow H_2O` .
The central atom of `SO_2` is sulphur, it contains 1 lone pair of electrons. The central atom `H_2O` is oxygen, it contains 2 lone pair of electrons