Given below are two statements :

Statement I : Permutit process is more efficient compared to the synthetic resin method for the softening of water.

Statement II : Synthetic resin method results in the formation of soluble sodium salts.

In the light of the above statements, choose the most appropriate answer from the options given below:

Match List I with List II

Choose the correct answer from the options given below:

Which hydride among the following is less stable?

Given below are two statements:

Statement-I : Methane and steam passed over a heated $$\mathrm{Ni}$$ catalyst produces hydrogen gas.

Statement-II : Sodium nitrite reacts with $$\mathrm{NH}_{4} \mathrm{Cl}$$ to give $$\mathrm{H}_{2} \mathrm{O}, \mathrm{N}_{2}$$ and $$\mathrm{NaCl}$$.

In the light of the above statements, choose the most appropriate answer from the options given below :