Which of the following substances are soapy in touch?

Sodium bicarbonate

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Tartaric acid

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Malic acid

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Citric acid

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Solution

The correct option is A Sodium bicarbonate
Bases are soapy in touch. Among the given options, sodium bicarbonate i.e. baking soda is a base which is soapy in touch whereas rest options are examples of an acid.

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