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Which one of the following metals will g...

Which one of the following metals will give blue ash when its salt is heated with `Na_2 O_3` solid and `Co(NO_3)_2` on a charcoal piece?

A

Cu

B

Mg

C

Al

D

Zn

Text Solution

Verified by Experts

The correct Answer is:
A
`CoAlO_(2)` is formed which is blue .Follow cobalt
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