1.

Corrosive sublimate (HgCl_(2)) can be used to distinguish between

Answer»

formic acid and acetic acid
acetaldehyde and butanone
formaldehyde and propanone
All of the above

Solution :Corrosive sublimate gives BLACK ppt of calomel with formic acid but it does not REACT with acetic acid.
`2HCOOH+2HgCl_(2) to Hg_(2)Cl_(2)+CO_(2)+H_(2)O`
`CH_(3)COOH+HgCl_(2) to "No reaction"`


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