Which of the following is/are true for oxygen.

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Oxygen Family Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

KMnO4(s) on strong heating gives oxygen gas

Oxygen mixed with helium is used for artificial respiration.

It has two unpaired electrons in bonding p molecular orbitals.

Brins process is used as industrial method for the preparation of oxygen gas.

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The correct answer is:

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(a, b, d)

2KMnO4 K2MnO4 + MnO2 + O2

He is insoluble in blood at higher pressure.

O2 has two unpaired electrons in antibonding p molecular orbitals.

2BaO + O2 (air) 2BaO2 ; BaO2 2BaO + O2

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