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

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry4. d and f- block elements1 Mark
MCQ
Most transition metals

$I :$ form sets of compounds which display different oxidation states of the metal

$II :$ form coloured ions in solution

$III :$ burn vigorously in oxygen

$IV :$ act as catalyst

  • A
    $I, II, III$ are correct
  • B
    $II, III, IV$ are correct
  • ✓
    $I, II, IV$ are correct
  • D
    all are correct
✓

Answer

Correct option: C.
$I, II, IV$ are correct
c

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