Consider the following differences between Hydrogen and Helium gases:

  1. While Helium is a non-flammable gas, Hydrogen is a flammable gas
  2. Helium is lighter than Hydrogen gas

Which of the above statements is/are correct?

Answer: [A] 1 Only

Hydrogen and helium are two most commonly used uplift gases. Although helium is twice heavy as hydrogen, but being a non-flammable gas, it is preferred over hydrogen (flammable gas).

This question is a part of GKToday's Integrated IAS General Studies Module