Question

Which of the following is a tetrabasic acid?

(a) Hypophosphorous acid

(b) Metaphosphoric acid

(c) Pyrophosphoric acid

(d) Orthophosphoric acid​

Answer 1

(pyrophosphoric acid) is a tetrabasic acid because it gives four H + ions.

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Answer 2

Answer:

C) pyrophosphoric acid

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