Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2005
Exam
AIIMS
Year
2005
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

AIIMS 2005 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

F_2 formed by reacting K_2 MnF_6 with

F2\mathrm{F}_2 formed by reacting K2MnF6\mathrm{K}_2 \mathrm{MnF}_6 with

Options

  1. ASbF5\mathrm{SbF}_5
  2. BMnF3\mathrm{MnF}_3
  3. CKSbF6\mathrm{KSbF}_6
  4. DMnF4\mathrm{MnF}_4.

Correct answer

A. SbF5\mathrm{SbF}_5

Step-by-step solution

K2MnF6+2SbF5→2KSbF6+MnF3+12 F2\mathrm{K}_2 \mathrm{MnF}_6+2 \mathrm{SbF}_5 \rightarrow 2 \mathrm{KSbF}_6+\mathrm{MnF}_3+\frac{1}{2} \mathrm{~F}_2 In this reaction, the stronger Lewis acid SbF5\mathrm{SbF}_5 displaces the weaker one, MnF4\mathrm{MnF}_4 from its salt. MnF4\mathrm{MnF}_4 is unstable and readily decomposes to give MnF3\mathrm{MnF}_3 and fluorine.
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 2026Given below are two statements: Statement-I : Heating NaCl with concentrated H _2 SO _4… NEET 2026Given below are two statements: Statement I : Like nitrogen that can form ammonia… NEET 2025Match List - I with List-II List-I List-II A. XeO_3 I. sp^3 d, linear B. XeF_2 II. sp^3… NEET 2025Among Group 16 elements, which one does NOT show -2 oxidation state? NEET 2024Identify the incorrect statement. NEET 2024The products A and B obtained in the following reactions, respectively, are aligned & 3… NEET 2024Given below are two statements: Statement I: The boiling point of hydrides of Group 16… NEET 2024 Full p Block Elements (Group 15, 16, 17 & 18) list All AIIMS PYQs