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NEET 2012
Exam
NEET
Year
2012
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

NEET 2012 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Which of the following statements is not valid for oxoacids of...

Which of the following statements is not valid for oxoacids of phosphorus?Which of the following statements is not valid for oxoacids of phosphorus?

Options

  1. AOrthophosphoric acid is used in the manufacture of triple superphosphate
  2. BHypophosphorous acid is a diprotic acid
  3. CAll oxoacids contain tetrahedral four coordinated phosphorus
  4. DAll oxoacids contain at least one P=O\mathrm{P}=\mathrm{O} unit and one P−OH\mathrm{P}-\mathrm{OH} group

Correct answer

B. Hypophosphorous acid is a diprotic acid

Step-by-step solution

Hypophosphorous acid, H3PO2\mathrm{H}_3 \mathrm{PO}_2, has the following structure. Which of the following statements is not valid for oxoacids of phosphorus?
As it contains only one replaceable HH-atom (that is attached with O\mathrm{O}, not with P directly) so it is a monoprotic acid. All other given statements are true.
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