The products A and B obtained in the following reactions, respectively, are aligned & 3 ROH+PCl_3 arrow 3 RCl+A & ROH+PCl_5 arrow RCl+HCl+B aligned

Correct answer: C. H_3 PO_3 and POCl_3 These reactions are preparation of haloalkanes from alcohols. 3 ROH+PCl_3 3 RCl+H_3 PO_3 ROH+PCl_5 RCl+HCl+POCl_3 A and B are H_3 PO_3 and POCl_3 respectively.

NEET 2024

Exam: NEET
Year: 2024
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

NEET 2024 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

The products A and B obtained in the following reactions,...

The products A and B obtained in the following reactions, respectively, are

\begin{aligned} & 3 \mathrm{ROH}+\mathrm{PCl}_3 \rightarrow 3 \mathrm{RCl}+\mathrm{A} \\ & \mathrm{ROH}+\mathrm{PCl}_5 \rightarrow \mathrm{RCl}+\mathrm{HCl}+\mathrm{B} \end{aligned}

Options

A $\mathrm{POCl}_3$ and $\mathrm{H}_3 \mathrm{PO}_4$
B $\mathrm{H}_3 \mathrm{PO}_4$ and $\mathrm{POCl}_3$
C $\mathrm{H}_3 \mathrm{PO}_3$ and $\mathrm{POCl}_3$
D $\mathrm{POCl}_3$ and $\mathrm{H}_3 \mathrm{PO}_3$

Correct answer

C. $\mathrm{H}_3 \mathrm{PO}_3$ and $\mathrm{POCl}_3$

Step-by-step solution

These reactions are preparation of haloalkanes from alcohols.

3 \mathrm{ROH}+\mathrm{PCl}_3 \longrightarrow 3 \mathrm{RCl}+\mathrm{H}_3 \mathrm{PO}_3

\mathrm{ROH}+\mathrm{PCl}_5 \longrightarrow \mathrm{RCl}+\mathrm{HCl}+\mathrm{POCl}_3

A

and

B

are

\mathrm{H}_3 \mathrm{PO}_3

and

\mathrm{POCl}_3

respectively.

Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Identify the incorrect statement from the following : NEET 2026 Given below are two statements: Statement-I : Heating NaCl with concentrated H _2 SO _4… NEET 2026 Given below are two statements: Statement I : Like nitrogen that can form ammonia… NEET 2025 Match List - I with List-II List-I List-II A. XeO_3 I. sp^3 d, linear B. XeF_2 II. sp^3… NEET 2025 Among Group 16 elements, which one does NOT show -2 oxidation state? NEET 2024 Identify the incorrect statement. NEET 2024 Given below are two statements: Statement I: The boiling point of hydrides of Group 16… NEET 2024 Identify the incorrect statement from the following: NEET 2024 Full p Block Elements (Group 15, 16, 17 & 18) list All NEET PYQs