1.

Which of the following reaction not possible :

Answer»

`KMnO_4 +SO_2 to `COLOUR CHANGE
`K_2Cr_2O_7 + SO_2 to ` Colour change
`KMnO_4 + CO_2 to ` Colour change
`FeCl_3 +SO_2 to ` Colour change

ANSWER :C


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