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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

For H 3 P O 3 and H 3 P O 4 correct choice is

Options

  1. AH 3 P O 3 is diabasic and reducing agent.
  2. BH 3 P O 3 is diabasic and non-reducing agent.
  3. CH 3 P O 4 is tribasic and reducing agent.
  4. DH 3 P O 4 is dibasic and non-reducing agent.

Correct answer

A. H 3 P O 3 is diabasic and reducing agent.

Step-by-step solution

As oxidation state of Pis + 3 can be decreased to – 3 and increased to + 5 so it can act both as a reducing agent as well as an oxidising agent.

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