Medium MCQ +4 / -1 PYQ · JEE Mains 2022

Consider the following reaction :

A + alkali $\to$ B (Major Product)

If B is an oxoacid of phosphorus with no P-H bond, then A is :

  1. A White P<sub>4</sub>
  2. B Red P<sub>4</sub> Correct answer
  3. C P<sub>2</sub>O<sub>3</sub>
  4. D H<sub>3</sub>PO<sub>3</sub>

Solution

Red P<sub>4</sub> + Alkali $\to$ H<sub>4</sub>P<sub>2</sub>O<sub>6</sub> (No P–H bond)

About this question

Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family

This question is part of PrepWiser's free JEE Main question bank. 300 more solved questions on p-Block Elements are available — start with the harder ones if your accuracy is >70%.

Drill 25 more like these. Every day. Free.

PrepWiser turns these solved questions into a daily practice loop. Chapter-wise drills, full mocks, AI doubt chat. No auto-renew.

Start free →