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STD 12 - 4. d and f- block elements — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 4. d and f- block elements4 Marks
MCQ
Pick out the incorrect statement :
  • A
    $MnO_2$ dissolves in conc. $HCl,$ but does not form $Mn^{4+}$ ions
  • B
    $MnO_2$ oxidizes hot concentrated $H_2SO_4$ liberating oxygen
  • C
    $K_2MnO_4$ is formed when $MnO_2$ in fused $KOH$ is oxidised by air, $KNO_3 , PbO_2$ or $NaBiO_3$
  • ✓
    Decomposition of acidic $KMnO_4$ is not catalysed by sunlight.
✓

Answer

Correct option: D.
Decomposition of acidic $KMnO_4$ is not catalysed by sunlight.
d

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