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P Block Elements question

2004 · Shift 0 · Q45
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P Block Elements question

2004 · Shift 0 · Q45

JEE MainChemistryP Block ElementsMCQ+4 / −1
Which one the following statement regarding helium is incorrect?
  1. A
    It is used to fill gas balloons instead of hydrogen because it is lighter and non–inflammable
  2. B
    It is used in gas – cooled nuclear reactors
  3. C
    It is used to produce and sustain powerful superconducting reagents
  4. D
    It is used as cryogenic agent for carrying out experiments at low temperatures
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