Most crystals show good cleavage because their atoms, ions or molecules are:

On doping Ge metal with a little of In or Ga, one gets:

A pure crystalline substance on being heated gradually first forms a turbid liquid at constant temperature, and still at higher temperature  turbidity completely disappears.  This behaviour is a characteristic of substances forming:

The number of atoms contained in a fcc unit cell of a mono atomic substance is:

The beans are cooked earlier in pressure cooker because:

When electrons are trapped into the crystalline anion vacancy, the defect is known as:

Pressure remaining the same, the volume of a given mass of an ideal gas increases for every degree centigrade rise in temperature by definite fraction of its volume at:

At which condition does Vander waals' real gas, act as an ideal gas?