In a molecule of pyrophosphoric acid, the number of \( \mathrm{P} \...

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In a molecule of pyrophosphoric acid, the number of \( \mathrm{P} \) - \( \mathrm{OH}, \mathrm{P}=\mathrm{O} \) and \( \mathrm{P}-\mathrm{O}-\mathrm{P} \) bonds/ moiety(ies) respectively are
\( \mathrm{P} \)
[JEE Main-2020 (September)]
W
(1) 4,2 and 0
(2) 4,2 and 1
(3) 3,3 and 3
(4) 2,4 and 1
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