Question:medium

Which physical property of dihydrogen is wrong ?

Updated On: Apr 1, 2026
  • Colourless gas
  • Odourless gas
  • Tasteless gas
  • Non-inflammable gas
Show Solution

The Correct Option is D

Solution and Explanation

The question asks us to identify which of the given physical properties of dihydrogen is incorrect. Let's evaluate each option:

  1. Colourless gas: Dihydrogen (H2) is indeed a colourless gas at room temperature. This statement is correct.
  2. Odourless gas: Dihydrogen is known to have no smell, making it an odourless gas. This statement is correct.
  3. Tasteless gas: Hydrogen is tasteless, which means the gas can neither impart nor have any taste. This statement is correct.
  4. Non-inflammable gas: This statement is incorrect. Dihydrogen is highly inflammable and burns in the presence of oxygen to form water. Therefore, labeling it as non-inflammable is wrong.

Thus, the incorrect physical property of dihydrogen is that it is a "Non-inflammable gas."

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