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JEE Main 24-Jan-2025 Paper - Shift 1 — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEEJEE Main 24-Jan-2025 Paper - Shift 14 Marks
MCQ
Preparation of potassium permanganate from $\mathrm{MnO}_{2}$ involves two step process in which the $1^{\text {st }}$ step is a reaction with KOH and $\mathrm{KNO}_{3}$ to produce
  • A
    $\mathrm{K}_{4}\left[\mathrm{Mn}(\mathrm{OH})_{6}\right]$
  • B
    $\mathrm{K}_{3} \mathrm{MnO}_{4}$
  • C
    $\mathrm{KMnO}_{4}$
  • ✓
    $\mathrm{K}_{2} \mathrm{MnO}_{4}$
✓

Answer

Correct option: D.
$\mathrm{K}_{2} \mathrm{MnO}_{4}$
(D)
Sol. $\mathrm{MnO}_{2} \xrightarrow[\mathrm{KNO}_{3}, \Delta]{\mathrm{KOH}} \mathrm{K}_{2} \mathrm{MnO}_{4}$

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