1.

Which of the following pairs is not correctly matched.

Answer»

ALLOTROPIC form of sulphur which is more stable at room temperature - RHOMBIC
The hydride of group 16 which is liquid at room temperature - Water
The gas formed in the upper layers of atmosphere by action of UV radiations - Nitrogen
The catalyst USED in the manufacture of `H_(2)SO_(4)` by contact process - Vanadium pentoxide

Solution :The gas formed in the upper layers of atmosphere by action of UV radiations is ozone.


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