Radon is
an inert gas
an artificial fibre
an explosive
a metal
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC NDA-1 – 2017
Let’s evaluate the options:
A) an inert gas: Correct. Radon is a noble gas, which is synonymous with being an inert gas due to its very low chemical reactivity.
B) an artificial fibre: Incorrect. Artificial fibres are synthetic textiles (e.g., nylon, polyester).
C) an explosive: Incorrect. Explosives are substances that undergo rapid expansion in volume with the release of large amounts of energy (e.g., TNT, gunpowder).
D) a metal: Incorrect. Radon is a non-metal (specifically, a gas at standard conditions).