Which of the following defects in a crystal lattice would significantly increase its density?

If AgCl is doped with ${10^{ - 6}}$ mol% of $CdC{l_2}$, the concentration of cation vacancies will be

A solid $X$ melts slightly above $273\;K$ and is a poor conductor of heat and electricity. To which of the following categories does it belong?

A solid $X$ melts slightly above $273\;K$ and is a poor conductor of heat and electricity. To which of the following categories does it belong?

Potassium fluoride has $NaCl$ type structure. What is the distance between ${K^ + }$ and ${F^ - }$ ions if cell edge is $a$ cm?

If AgCl is doped with ${10^{ - 6}}$ mol% of $CdC{l_2}$, the concentration of cation vacancies will be

A solid has a definite shape and volume. It is slightly compressible and is isotropic. Which type of solid is it most likely to be?

A solid 'X' dissolves readily in benzene but not in water. It does not conduct electricity in either solid or molten state. Upon heating, it undergoes sublimation. What is the most likely type of solid for 'X'?

A crystalline solid is hard, brittle, has a high melting point, and conducts electricity only in the molten state. Which type of solid is it most likely to be?

Which among the following will show anisotropy?