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JEE Advanced levelSingle correct optionDifficulty 3 of 3bn054

Select the row in which the formula, the name of the acid and the oxidation number of phosphorus are ALL correct (H is , O is ). Rows are written as formula; name; oxidation number of P.

  1. A; hypophosphorous acid;
  2. B; phosphorous acid;
  3. C; pyrophosphoric acid;
  4. D; metaphosphoric acid;

Answer: D

: gives P , and it is metaphosphoric acid, so the row is correct. : P is (not ). : P is (not ). : P is (not ).
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