Answer:
Carboxylic acid, any of a class of organic compounds in which a carbon atom is ... to an oxygen atom by a double bond and to a hydroxyl group by a single bond. ... sour-milk products) and citric acid (found in citrus fruits), and many keto acids ...
Explanation:
Correct option C
<span>Tidal power is harnessed by </span><span>building a dam across the mouth of a bay</span>
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