Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
3 moles of ethanol reacts with one mole of phosphorus tribromide to form 3 moles of bromo-ethane and one mole of $X$. Which of the following is $X$ ?
ChemistryAlcohols Phenols and EthersAP EAMCETAP EAMCET 2001
Options:
  • A $\mathrm{H}_3 \mathrm{PO}_4$
  • B $\mathrm{H}_3 \mathrm{PO}_2$
  • C $\mathrm{HPO}_3$
  • D $\mathrm{H}_3 \mathrm{PO}_3$
Solution:
2707 Upvotes Verified Answer
The correct answer is: $\mathrm{H}_3 \mathrm{PO}_3$
$\begin{array}{r}3 \mathrm{C}_2 \mathrm{H}_3 \mathrm{OH}+\mathrm{PBr}_3 \longrightarrow 3 \mathrm{C}_2 \mathrm{H}_3 \mathrm{Br}+\mathrm{H}_3 \mathrm{PO}_3 \\ (X)\end{array}$

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play