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JEE Main levelOne or more correct optionsDifficulty 2 of 3pn046

Which of the following statements about the oxides of phosphorus are correct?

A $P X_{4} O X_{6}$ reacts with cold water to give $H X_{3} PO X_{3}$ .
B $P X_{4} O X_{10}$ contains P-P bonds.
C $P X_{4} O X_{10}$ contains four terminal $P = O$ bonds.
D $P X_{4} O X_{6}$ contains four terminal $P = O$ bonds.

Answer: A, C

P X_{4} O X_{6}

has six P-O-P bridges and no terminal oxygen;

P X_{4} O X_{10}

has the same skeleton plus four terminal

P = O

bonds, and neither contains P-P bonds.

P X_{4} O X_{6} + 6 H X_{2} O 4 H X_{3} PO X_{3}

with cold water. Correct: B, D.

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