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Which of the following is//are true for ...

Which of the following is//are true for oxygen.

A

`KMnO_(4)`(s) on strong heating gives oxygen gas

B

Oxygen mixed with helium is used for artificial respiration.

C

It has two unparied electrons in bonding `pi` molecular orbitals.

D

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

Text Solution

Verified by Experts

The correct Answer is:
ABD
`(A)2KMnO_(4)to K_(2)MnO_(4)+MnO_(2)+O_(2)`
(B) He is insouble in blood at higher pressure.
(C ) `O_(2)` has unparied electrons in antibonding `pi` molecular orbitals.
(D) `2BaO+O_(2)` (air) `overset(500^circC)to 2BaO_(2)`" , " `BaO_(2)overset(800^circC)to 2Ba+O_(2)`
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