JEE Main 2015 · 11 Apr · Shift 1 · Chemistry Q45

ChemistrySingle correct+4 / -1Question 45 of 90

Which of the following compounds has a P − P bond ?

\ce{H4P2O5}

\ce{H4P2O6}

\ce{H4P2O7}

\ce{(HPO3)3}

Answer and worked solution

Official answer: B

Hypophosphoric acid, $\ce{H4P2O6}$ , is $\ce{(HO)2OP-PO(OH)2}$ with a P-P bond. $\ce{H4P2O5}$ and $\ce{H4P2O7}$ have P-O-P bridges.

JEE Main 2015 · 11 Apr · Shift 1, Chemistry question 45