What are favourable conditions for the formation of anion?

Which of the following is favourable condition for the formation of ionic bond?

O_(3) is prepared by subjecting 0, to silent electric discharge. The favourable conditions for the formation of ozone according to Le-chatlier's principle are

Densities of diamond and graphic are 3.5 and 2.5 gm/ml. C_("daimond") hArr C_("graphite") , Delta_(t) H = -1.9 KJ/ mole favourable conditions for formation of diamond are

What are the favourable conditions for covalent bond formation?

What are the reacting conditions used for the formation of ethylene glycol from ethylene?

The favourable conditions for a spontaneous reaction are

Explain the factors favourable for the formation of cation in lonic bond.