Which one of the following does not show hydrogen bonding?

A. Water
B. Ethyl alcohol
C. Phenol
D. Diethyl ether

Which one is a conductor but is not malleable ?

A. Iron
B. Graphite
C. Silver
D. Platinum

The density of water may be__________________?

A. Equal to that of ice
B. Greater than that of ice
C. Less than that of ice
D. All are possible

Steam causes more sever burn than the boiling water because it possesses _________________?

A. Latent heat of fusion
B. Latent heat of vaporization
C. Latent heat of sublimation
D. All of the above

The conversion of vapours back into their liquid state is called__________________?

A. Crystallization
B. Evaporization
C. Vaporization
D. Condensation

When water freezes at 0°C its density decreases due to_______________?

A. Change of bond angles
B. Cubic structure of ice
C. Empty space present in the structure of ice
D. Change of bond length

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

A. Isomorphism
B. Polymorphism
C. Anisotropy
D. Allotropy

Bucky balls is an allotropic from of__________________?

A. Sulphur
B. Carbon
C. Silica
D. Tin

Isomorphic substances have _______________?

A. Same physical and chemical properties
B. Same physical and different chemical properties
C. Different physical and same chemical properties
D. Different physical and chemical properties