The phenomenon in which a compound exists in two or more crystalline forms is called ________________?

Related Mcqs:

In order to mention the boiling point of water at 110°C the external pressure should be ?

A. Between 760 torr and 1200 torr B. Between 200 torr and 760 torr C. 765 torr D. any value of pressure...

Vapour pressure of water at 100°C is___________________?

A. 55 mm Hg B. 760 mm Hg C. 355 mm Hg D. 1489 mm Hg...

Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?

A. More strength of H-bonding B. More strength of London forces C. Less polarizability D. All of the above...

The boiling point increases down the zero group element due to_________________?

A. Ion dipole forces B. London forces C. Hydrogen bonding D. Dipole dipole forces...

The number of formula units in 29.25g of common salt_________________?

A. 6.022 x 1023 B. 3.01 x 1023 C. 2 x NA D. 4 x 6.022 x 1023...