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A solution of metal hydroxide (MOH) with...

A solution of metal hydroxide `(MOH)` with copper sulphate and mixed tartarate of metal `M` with another metal `M_(1)` of the same group is used in the detection of `-CHO` group. Metal `M` and `M_(1)` are respectively

A

Na , K

B

K,Rb

C

Na , Li

D

Rb, Na

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The correct Answer is:
A
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