A comound is formed by two elements M and N. The element N froms ccp and atoms of M occupy 1/3rd of tetrahedral voids. What is the formula of the compound ?

Options

A. `MN_2`
B. `M_2N_3`
C. `M_3N_2`
D. `M_2N_2`

Answer

B

Explanation

Suppose the atoms N in the ccp = a
`therefore` No of tetrehedral voids = 3a
No of atoms M = `(2a)/3` a = 2:3
Hence compound as `M_2:N_3`