Question
Which of the following pairs is not correctly matched?
A.
Allotropic form of sulphur which is more stable at room temperature - Rhombic
B.
The hydride of group 16 which is liquid at room temperature - Water
C.
The gas formed in the upper layers of atmosphere by action of $$UV$$ radiations - Nitrogen
D.
The catalyst used in the manufacture of $${H_2}S{O_4}$$ by contact process - Vanadium pentoxide
Answer :
The gas formed in the upper layers of atmosphere by action of $$UV$$ radiations - Nitrogen
Solution :
The gas formed in the upper layers of atmosphere by action of $$UV$$ radiations is ozone.