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The correct decreasing order of priority...

The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is

A

`-COOH, -SO_(3)H, -CONH_(2), -CHO`

B

`-SO_(3)H, -COOH, -CONH_(2), -CHO`

C

`-CHO, _COOH, -SO_(3)H, -CONH_(2)`

D

`-CONH_(2), -CHO, -SO_(3)H, -COOH`

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The correct Answer is:
A
The correct order of priodity for the given functional group is
`-COOH, -SO_(3)H, -CONH_(2), -CHO`
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