Q2 of 43 Page 188

The mixture of which two gases is known as water gas?

The gaseous mixture of carbon monoxide and dihydrogen gas is known as water gas.


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2

Give two examples of non-metallic elements which are in solid form.

 2

Give two examples of non-metallic elements which are in gaseous form.

 2

Which two substances are used as promoters in manufacture of ammonia gas by Haber’s process?

 2

What is meant by liquor ammonia? Write its chemical formula.