Which one of the following is a dibasic acid ? *
2 points
Carbonic acid
Phosphoric acid
Boric acid
acetic acid
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Answer:
carbonic acid is the right option
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ANSWER: PHOSPHORIC ACID
EXPLANATION:H
3
PO
3
has three hydrogen atoms but only two hydrogen atoms are joined through the oxygen atoms and are ionizable. The third hydrogen atom is linked to phosphorous-atom directly and is not ionizable.
The hydrogen-atom joined to the phosphorous-atom is reducing in nature and is not ionizable as a proton and therefore H
3
PO
3
acts as a dibasic acid.
Answered By -bmuthumanikandan
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