In a molecule of pyrophosphoric acid, the number of , and bonds/moiety(ies) respectively are:

Question

In a molecule of pyrophosphoric acid, the number of ,  and  bonds/moiety(ies) respectively are:

Canvas Classes · Accepted Answer

Pyrophosphoric acid:

Structure: Two  units linked by one P–O–P bridge (condensation of 2 phosphoric acid molecules with loss of water).

Each P atom has:
- 2 P–OH groups
- 1 P=O group
- 1 P–O–P bond (bridging)

For 2 P atoms:
- P–OH bonds: 2 × 2 = 4
- P=O bonds: 2 × 1 = 2
- P–O–P bonds: 1 (shared bridge)

Answer: Option (4) — 4, 2 and 1

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