Question

Which of the following is INCORRECT?

Options

• Metal deficiency defect is possible only in compounds of metals that show variable oxidation states.

• In substitutional impurity defect, the impurity atoms occupy interstitial spaces of lattice structure.

• Zn_1+xO_1.0 is an example of metal excess defect.

• NaCl shows yellow colour due to the formation of f-centre.

Answer 1

In substitutional impurity defect, the impurity atoms occupy interstitial spaces of lattice structure.

Explanation:

The foreign impurity is substituted in a substitutional impurity defect. At the lattice locations, (impurity) atoms can be discovered the location of the host atoms.