Give reasons for the following.
Copper cannot displace zinc from its salt solution.

Give reasons for the following: NO_2 dimerises.

Give reasons for the following: Sulphur vapour is paramagnetic.

Give reasons for the following: OF_6 compound is not known.

Give reasons for the following: NH_3 acts as a Lewis base.

Give reasons for the following: C-X bond length in halobenzene is smaller

Give reasons for the following: (+-) 2-Butanol is optically inactive

Give reasons for the following. Alumina is dissolved in cryolite for electrolysis instead of being electrolysed directly.

State whether the following statements are true or false: Copper can displace silver from silver nitrate solution