[" Compound "X_(2)Y" have antifluorite "],[" structure,which is / are correct "],[" statement? "]

Compound X_(2)Y have antiflurate structure . What is /are correct statement ?

Compound X_(2)Y have antiflurate structure . What is /are correct statement ?

In Na_2 O, having antifluorite structure

Which is correct statement about X and Y.

A compound of X & Y crystallise in cubic structure in which Y are at corners & X are at alternate faces of the cube. Find the formula of the compound?

For compound, which statement is correct

For compound, which statement is correct