Question

Where does hydrogen occur in free state ?​

Answer 1

Explanation:

Hydrogen occur in free state in traces in the earth's crust and atmosphere.

Hydrogen occurs in the earth's crust, atmosphere and in volcanic gases, also in the interior of the sun in the free state. In combined state it occurs in organic compounds, plants and animals, in acids and in water.

Answer 2

Answer:

Hydrogen occurs in the earth's crust, atmosphere and in volcanic gases, also in the interior of the sun in the free state