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Q.

When an ant bites, it injects _____.

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a

hydrochloric acid

b

formic acid

c

acetic acid

d

citric acid

answer is B.

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Detailed Solution

Ant injects an acidic liquid (formic acid) into the skin on biting, which causes inflammation to the skin. The effect of the acid can be neutralized by a calamine solution which contains zinc carbonate, which is a very weak base and causes no harm to the skin.

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