Question

. In a NaCl structure, if positions of Na atoms and CI
atoms are interchanged, then in the new unit cell
(1) Na atom is present at body centre
(2) Clatom is present at face centre
(3) Na atom is present in tetrahedral voids
(4) Cl atom is present in octahedral voids​

Answer 1

The correct answer is 2) Cl atom is present at face centre.

Explanation:

• This phenomenon is also term as fcc or cf. It stands for face centered cubic.

• NaCl is known as sodium chloride. It is also known as salt. It is the same salt that we use in our daily routine i.e in eatables etc.

• The crystalline structure of NaCl is a cube with centric features.

• It has eight lattices.

• It has ionic bonding. This makes the atom polar.

• These have partial positive and negative charges.