Chemistry · 2017
JEE Main · 9 April 2017, Shift 1 · Q47
The number of P - OH bonds and the oxidation state of phosphorus atom in pyrophosphoric acid ( H_4 P_2 O_7) respectively are:
The number of $\displaystyle \mathrm{P}-\mathrm{OH}$ bonds and the oxidation state of phosphorus atom in pyrophosphoric acid $\displaystyle \left(\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_7\right)$ respectively are :
Official answer
(4)
four and five
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JEE Main 2017 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.