Name the substance which makes the fruit sour?

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Acids

Bases

Salts

None of these

answer is A.

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Detailed Solution

Concept- Acids typically taste sour because they contain the sour hydrogen ion, whereas bases typically taste bitter because they contain the hydroxyl ions. But depending on the component of the molecule, they may also have different tastes. Salts, on the other hand, have a salty flavour.
Generally, acids are found to taste sour due to the presence of the sour hydrogen ion and bases are found to taste bitter due to the presence of the hydroxyl ions. The two main organic acids which are accumulated in fruits and cause the sour taste are malic acid and citric acid.
Hence, the correct answer is option 1.

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