ICSE /Class 7
Chemistry MCQ Based On Air a mixture of gases
Our free online Chemistry test quiz for Class 7, ICSE will assist you to improve your Chemistry skills on every concept in a fun interactive way.
ICSE Class 7 Chemistry Air a mixture of gases
It also called the noble gases.
It is an important property of "Air is a mixture".
They are responsible for respiratory diseases in humans.
Remember the components of air.
100 - (21 + 1)
Which gas protects us from ultraviolet rays of the Sun?
Concentrate on the names.
The first letter of nitrogen.
Recall what kind of mixture air is.
The first letter of oxygen.
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