Identify the correct statements from the following.

I. Reaction of hydrogen with fluorine occurs even in dark.

II. Manufacture of ammonia by Haber process is an endothermic reaction.

III. HF is electron rich hydride.

Which one of the following alkali metals is the weakes reducing agent as per their $E^{\circ}$ values?

In which of the following reactions, hydrogen is oned the products?

I. $\mathrm{NaBH}_4+\mathrm{I}_2 \longrightarrow$

II. $\mathrm{BF}_3+\mathrm{NaH} \xrightarrow{450 \mathrm{~K}}$

III. $\mathrm{BF}_3+\mathrm{LiAlH}_4 \longrightarrow$

IV. $\mathrm{B}_2 \mathrm{H}_6+\mathrm{NH}_3 \xrightarrow{\text { heat }}$

Two statements are given below.

Statement I : $\mathrm{SnF}_4, \mathrm{PbF}_4$ are ionic in nature.

Statement II : GeCl ${ }_2$ is more stable than $\mathrm{GeCl}_4$

The correct answer is