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UPSC CDS Science Chemistry Questions Part 1
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Question : 9
Total: 100
Which of the following characteristics is common to hydrogen, nitrogen, oxygen and carbon dioxide?
[2018 CDS-II]
They are all diatomic.
They are all gases at room temperature.
They are all coloured.
They all have same reactivity.
Validate
Solution:
Hydrogen, nitrogen, oxygen and carbon dioxide all exist as gases at room temperature. Among the given gases, no gas is coloured and carbon dioxide is not diatomic. They all have different reactivities.
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