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Which of the following is not correct?...

Which of the following is not correct?

A

`3O_(2) underset("discharge")overset("Silent electric")hArr 2O_(3),DeltaH=-284.5kJ`

B

ozone undergoes addition reaction with unsaturated carbon compounds

C

Sodium thiosulphate reacts with `I_(2)` to form sodium tetrathionate and sodium iodide

D

ozone oxidises lead sulphide to lead sulphate

Text Solution

Verified by Experts

The correct Answer is:
A
`3O_(2) underset("Discharge")overset("Electric")hArr 2O_(3),DeltaH=287kJ`
the given equation is an exothermic reaction.
But the formation of ozone from oxygen is an endothermic reaction.
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