Question:

Consider the following reaction: 
A + alkali → B (Major Product)
If B is an oxoacid of phosphorus with no P-H bond, then A is

Updated On: Jul 6, 2024
  • White P4

  • Red P4

  • P2O3

  • H3PO3

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The Correct Option is B

Solution and Explanation

White P4 + alkali → H3PO2
Red P4 + alkali → H4P2O6
structure of H2P2O6
No P-H bond

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Concepts Used:

Hydrocarbons - Reaction Mechanism

Hydrocarbons are organic compounds that are entirely made up of only two kinds of atoms – carbon and hydrogen. Typically, hydrocarbons are colourless gases that have very weak odours.

Mechanism of electrophilic substitution reactions:

According to experimental evidences, SE (S = substitution; E = electrophilic) reactions are supposed to proceed via the following three steps:

  1. Generation of the electrophile
  2. Formation of carbocation intermediate
  3. Removal of proton from the carbocation interm