railway RRB Technician Grade 3 Mock Test 2024 General Science Chemistry States of Matter

Which odourless, colourless, tasteless and chemically unreactive gas was invented by Daniel Rutherford in 1772 and was independently isolated at the same time by CW Scheele and H Cavendish?

1

Nitrogen

2

Argon

3

Fluorine

4

Oxygen

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