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Hydrogen

Question

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How temporary hardness of water is removed?

Solution

A temporary hardness of water is removed by the following way:
(i) By boiling and (ii) by adding lime.

Some More Questions From Hydrogen Chapter

Hydrogen is the lightest gas. Still its use in filling balloons has been discarded. Why?

Hydrogen forms both H⁺ ion and H^-ion. Explain.

What is the molecular mass of a compound formed when tritium is burnt in air?

Out of H₂ and D₂ which has higher boiling point and why?

Give one use of liquid hydrogen.

Why dihydrogen (H₂) is not preferred for filling of balloons and airships?

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