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प्रश्न
The functional group which always occurs in the middle of a carbon chain is:
(a) alcohol group
(b) aldehyde group
(c) carboxyl group
(d) ketone group
उत्तर
ketone group
The ketone group (-CO-), with the general formula R-CO-R, is always present in the middle of a carbon chain.
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\[\begin{array}{cc}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
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|\\
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