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Al salts on heating with Na(2)CO(3) in c...

`Al` salts on heating with `Na_(2)CO_(3)` in charcoal cavity gives a white infusible residue. On moistening the same with a drop of cobalt nitrate, it changes to ____due to the formation of cobalt meta-aluminate (Thenard's blue)

A

Brown

B

Yellow

C

Blue

D

Lemon

Text Solution

Verified by Experts

The correct Answer is:
C
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