Which one of the following is the colour of hydrogen gas?
[amp_mcq option1=”Light yellow” option2=”Orange” option3=”Black” option4=”Colourless” correct=”option4″]
This question was previously asked in
UPSC NDA-1 – 2022
– At standard temperature and pressure, hydrogen exists as a diatomic molecule (H₂) and is a gas.
– Pure hydrogen gas is colourless, odourless, and tasteless.
– It is also highly flammable.