(i) What is the weight of sodium bromate and molarity pf solution necessary to prepare 85.5 ml of 0.672 B solution when the half-cell reaction is

$$BrO_3^- + 6H^+ + 6e^- \to $$ $$Br^- + 3H_2O$$

(ii) What would be the weight as well as molarity if the half-cell reaction is:

$$2BrO_3^- + 12H^+ + 10e^- \to$$ $$Br_2 \,+ 6H_2O$$

In group IA, of alkali metals, the ionisation potential decreases on moving down the group. Therefore, lithium is a strongest reducing agent

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

Atomic radii of fluorine and neon in Angstrom units are respectively given by