Chemistry - Solid State Question with Solution | TestHub

(A) Incorrect
n-type and p-type semiconductors involve substitution of atoms, but they do not systematically increase or decrease density. So statement is wrong.

(B) Correct
Dislocation defects are line defects and do not change mass or volume significantly, so density remains nearly unchanged.

(C) Correct
Increase in temperature increases defect concentration (vacancies), so defect density increases.

(D) Correct
CsCl structure favors Schottky defects more than Frenkel due to size factor and coordination constraints.