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The compound whose 0.1 M solution is aci...

The compound whose 0.1 M solution is acidic :
`[pK_(a)"of" HCOOH=0.75,pK_(b)"of"NH_(4)OH=4.74]`

A

Ammonium formate

B

Ammonium sulphate

C

Ammonium chloride

D

Sodium formate

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