Multiple choice

Match the following entries:

 
Column I
Column II
A. Phosphorous acid 1. Monoprotic acid
B. Phosphoric acid 2. Diprotic acid
C. Metaphosphoric acid 3. Triprotic acid
D. Pyrophosphoric acid 4. Tetraprotic acid

  1. A - 1; B - 2; C - 3; D - 4

  2. A - 2; B - 1; C - 4; D - 3

  3. A - 2; B - 3; C - 1; D - 4

  4. A - 3; B - 2; C - 1; D - 4

  5. A - 3; B - 4; C - 1; D - 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Phosphorous acid (H3PO3) is a diprotic acid. Phosphoric acid (H3PO4) is a triprotic acid. Metaphosphoric acid (HPO3) is a monoprotic acid. Pyrophosphoric acid (H4P2O7) is a tetraprotic acid.

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