Question

State True or False.
Free hydrogen is found naturally on earth.
A.True
B.False

Answer 1

Hint: In this question, we have to say whether the given statement is true or false. Hydrogen is unique among the elements because it has only one electron and one proton. Therefore, its atomic number is 1. It is the first element in the periodic table. The electronic configuration of hydrogen is $1{s^1}$. Hydrogen atom exists as hydrogen molecule $\left( {{H_2}} \right)$

Complete step by step answer:
Now we will discuss the given statement in detail.
Hydrogen $\left( {{H_2}} \right)$ is the most abundant element in the universe (70 percent of the universe’s total mass). It is believed that most of the mass of the planets, Jupiter and Saturn is due to hydrogen. About half of the mass of the sun and the stars is also due to hydrogen. It is now well established that the energy of the sun is due to the reaction involving the conversion of the hydrogen nucleus to helium.
On the earth, hydrogen occurs to a small extent in the free state. The hydrogen in the free state is probably derived from a volcanic eruption and natural gases.
After discussing in detail we conclude that the given statement is true.

Thus, the correct option is (A).


Note:
Hydrogen can be placed in group 1 along with alkali metals because some of its properties resemble the alkali metals and also it can be placed with the group 17 because many of its properties are common with those of halogens.
Hydrogen in the combined form constitutes about 15 percent of the earth’s crust and oceans. It is an essential constituent of all acids, alkalies, petroleum, animal, and vegetable matter. One-ninth of water by weight is hydrogen.