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JEE Main 202118 MarchMorning Shift

Exam: JEE Main
Year: 2021
Date: 18 March
Shift: Morning Shift
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2021 · 18 March · Morning Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

The number of ionisable hydrogens present in the product obtained...

The number of ionisable hydrogens present in the product obtained from a reaction of phosphorus trichloride and phosphonic acid is:

The number of ionisable hydrogens present in the product obtained from a reaction of phosphorus trichloride and

Options

A $3$
B $0$
C $2$
D $1$

Correct answer

C. $2$

Step-by-step solution

${PCl}_{3} + {H}_{3}{PO}_{3} + 2{H}_{2}O \to {H}_{4}{P}_{2}{O}_{5} + 3HCl$

The number of ionisable hydrogens present in the product obtained from a reaction of phosphorus trichloride and

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