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
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
- C
$I, II, IV$ are correct
- D
all are correct
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