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A colourless salt colours a bunsen flame...

A colourless salt colours a bunsen flame golden yellow and also turns moistened litmus paper blue. The substance is

A

`Na_(2)CO_(3)`

B

NaCl

C

Cu(OH)`_(2)`

D

`K_(2)CO_(3)`.

Text Solution

Verified by Experts

The correct Answer is:
A
Golden flame is due Na and aqueous solution of `Na_(2)CO_(3)` is basic in character, hence it turns litmus paper blue.
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