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NTA Abhyas NEET2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

Which one is incorrect statement?

Options

  1. AHe is used in gas cooled nuclear reactors
  2. BHe is used as a cryogenic agent for carrying out experiments at low temperature
  3. CHe is used to produce and sustain powerful super conducting magnets
  4. DHe is used to fill gas balloons instead of H 2 because it is lighter than H 2 and non-inflammable

Correct answer

D. He is used to fill gas balloons instead of H 2 because it is lighter than H 2 and non-inflammable

Step-by-step solution

He is used to fill gas balloons as it is lighter and non-inflammable, But H 2 is lighter than helium.

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