Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: P Block Elements

Question:

In each of the following question, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R). Choose the correct answer as:

Assertion (A): Xenon formed fluorides.

Reason (R):  Because 5d orbitals are available for valence shell expansion.

Options:

If both assertion and reason are true, and reason is the correct explanation of the assertion.

If both assertion and reason are true, but the reason is not the correct explanation of the assertion.

If the assertion is true, but the reason is false

If both assertion and reason are false.

Correct Answer:

If both assertion and reason are true, and reason is the correct explanation of the assertion.

Explanation:

Xenon belongs to noble gases which are considered to be very unreactive. In xenon atom, the ionisation potential of Xe to lose one electron was found to be nearly equivalent that of
 O2 →O2+ + e-
Also, due to the presence of empty 5d-orbitals, electrons can be excited and higher valency of xenon can be produced. e.g., XeF2, XeF4, XeF6 etc.