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Which is a characteristic property of acids? A-they, turn blue litmus paper red . B-they, turn red litmus paper blue. C-they tastes bitter D-they don't react with metals

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shegxld
They turn blue litmus paper to red.

They also taste sour.

Answer:

Option A

Explanation:

Option A - Blue litmus paper turns red under acidic conditions so this option is correct.

Option B - Acids do not turn red litmus paper red, bases are the ones responsible for that. Hence, this option is incorrect.

Option C - Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion. This option is incorrect.

Option D - This option is incorrect as acid reacts with metal, to form salt and hydrogen.

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