Which physical property of dihydrogen is wrong ?

Question

The wavelength of the light emitted by a hydrogen atom during a transition from \( n = 3 \) to \( n = 2 \) is \( 656.3 \, \text{nm} \). What is the energy of the photon emitted during this transition?

Answer 1

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

Colourless gas: Dihydrogen (H₂) is indeed a colourless gas at room temperature. This statement is correct.
Odourless gas: Dihydrogen is known to have no smell, making it an odourless gas. This statement is correct.
Tasteless gas: Hydrogen is tasteless, which means the gas can neither impart nor have any taste. This statement is correct.
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."

Answer 2

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

Colourless gas: Dihydrogen (H₂) is indeed a colourless gas at room temperature. This statement is correct.
Odourless gas: Dihydrogen is known to have no smell, making it an odourless gas. This statement is correct.
Tasteless gas: Hydrogen is tasteless, which means the gas can neither impart nor have any taste. This statement is correct.
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."

Which physical property of dihydrogen is wrong ?

The Correct Option is D

Solution and Explanation

Top Questions on Bohr’s Model for Hydrogen Atom

Questions Asked in JEE Main exam