JEE MAIN - Chemistry (2024 - 6th April Morning Shift - No. 7)
Functional group present in sulphonic acids is :
$$-$$SO$$_2$$
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$$-\mathrm{SO_3H}$$
$$-\mathrm{SO_4H}$$
Explanation
$$-\mathrm{SO}_3 \mathrm{H}$$ is functional group in sulphonic acids.
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