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MHT CET202616 April 2026Evening ShiftChemistryHydrogenActual

Which of the following statements is NOT correct regarding dihydrogen?

Options

  1. AIt is colorless and tasteless gas.
  2. BIt burns with a pale blue flame.
  3. CIt is a polar water-soluble gas.
  4. DIt is lighter than air.

Correct answer

C. It is a polar water-soluble gas.

Step-by-step solution

Dihydrogen ( H₂ ) is a homonuclear diatomic molecule, meaning both atoms have the same electronegativity. Therefore, it is a non-polar molecule. Since water is a polar solvent, dihydrogen is practically insoluble in water due to the "like dissolves like" principle. Dihydrogen is a colorless, odorless, and tasteless gas. It is lighter than air and burns with a pale blue flame. Thus, the statement that it is a polar water-soluble gas is incorrect. Answer: It is a polar water-soluble gas.

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