1.

Chromic anhydride in H_(2)SO_(4) is not blue by:

Answer»

a.`1^(@)` alcohol
b.`2^(@)` alcohol
c.`3^(@)` alcohol
d.

Solution :Since `3^(@)` alcohols are not oxidised by `("CHROMIC anhydride" + H_(2)SO_(4))` or `(Cr_(2)O_(7)^(2-)+ H_(2)SO_(4))`, so no change of `Cr^(6+)` to `Cr^(3+)`. Hence, no change of colour.


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