Which of the following statements are correct?

Options

A. the crystal lattice of ice is mostly formed by covalent as well as hydrogen bonds
B. the density of water increases when beated from `O^(@)C` to `4^(@)C` due to the change in the structure of the cluster of water molecules
C. above `4^(@)C` the thermal agitation of water molecules increases. Therefore, intermolecular distance increases and water starts expanding
D. the density of water incrases from `0^(@)C` to a maximum at `4^(@)C` and the entropy of the system increases

Answer

A, B, C, D

Explanation

(a) the crystal lattice of ice is mostly formed by covalent as well as hydrogen bonds.
(b) the density of water increases when heated from `0^(@)C` to `4^(@)C` due to the change in the structure of the cluster of water molecules
(c) above `4^(@)C` the thermal agitation of water molecules increases. Therefore, intermolecular distance increases and water starts expanding.
(d) the density of water incrases from `0^(@)C` to a maximum at `4^(@)C` and the entropy of the system increases