In a carbon monoxide molecule, the carbon and oxygen atoms are separated by a distance of `1.12 xx 10^(-10)` m. The distance of the centre of mass from the carbon atom is

Options

A. `0.48 xx 10^(-10)` m
B. `0.51 xx 10^(-10) m`
C. `0.56 xx 10^(-10) m`
D. `0.64 xx 10^(-10)` m

Answer

D

Explanation

Since the mass of carbon atom is 12 units and that of oxygen atom is 16 units , the distance of the centre of mass from the carbon atom is
`R_(CM) = (12 + 0 xx 16 + 1.12 xx 10^(-10))/(12 + 16) = 0.64 xx 10^(-10) m`