Question

0.26 Assertion: one mole of water 1 point
molecule at 4 degree Celsius
should occupy the volume of 18 ml
Reason: water contain H2O
molecule bonded to each other by
intermolecular hydrogen bonding​

Answer 1

Answer:

.

The evidence for hydrogen bonding

Many elements form compounds with hydrogen. If you plot the boiling points of the compounds of the group 14 elements with hydrogen, you find that the boiling points increase as you go down the group.

Figure 1: Boiling points of group 14 elemental halides.

The increase in boiling point happens because the molecules are getting larger with more electrons, and so van der Waals dispersion forces become greater. If you repeat this exercise with the compounds of the elements in groups 15, 16, and 17 with hydrogen, something odd happens.