1.

In which operations , the formula of NaCl remains same ?

Answer»

On passing one body-DIAGONAL plane in unit cell and all the ions are removed TOUCHING body-diagonal plane
On passing one reactangular plane in unit cell and all the ions are removed touching RECTANGULAR plane
On passing tetrad axis in unit-cell and all the ions are removed touching the tetrad axis
On passing body-diagonal LINE in unit cell and all the ions are removed touching the body diagonal line

Answer :A::B::C


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