Question

One of the main advantages of Hydrogen as a fuel is that:

Answer 1

Answer:

The correct answer is option D.

Explanation:

A fuel cell is defined as the electrochemical cell which converts the chemical energy of a fuel (often used hydrogen) and an oxidizing agent (often used oxygen) into electrical energy via a pair of redox reactions.

The reactions which occur in hydrogen-oxygen fuel cell are:

At cathode:  $H_2+2OH^-\rightarrow 2H_2O+2e^-$

At anode:  $\frac{1}{2}O_2+H_2O+2e^-\rightarrow 2OH^-$

As we can see that reaction of hydrogen gas with oxygen gas gives us the water as a product which can be used for other things and it also doesn't pollutes environment.