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The salt of an alkali metal gives yellow...

The salt of an alkali metal gives yellow colour in the flame test. Also its aqueous solution gives an insoluble white precipitate with barium chloride in acidic medium. The salt is

A

`NaCl `

B

`K_2SO_4`

C

`Na_2SO_4`

D

`Li_2SO_4`

Text Solution

Verified by Experts

The correct Answer is:
C
`Na_2SO_4 + BaCl_2 to underset("Insoluble white ppt")(BaSO_4) + 2NaCl`
`Na_2SO_4` gives yellow colour in flame test .
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