JEE Advanced Chemistry question

Chemistry The d and f-Block Elements JEE Advanced

Most transition metals I. forms sets of compounds which display different oxidation states of the metal II. form coloured ions in solution III. burn vigorously in oxygen IV. replace from dilute acids

(A)I, II, III are correct
(B)II, III, IV and correct
(C)I, II are correctCorrect
(D)All are correct

Answer: (C)

Solution

Variable oxidation states (I) and coloured ions in solution (II) are genuinely general, characteristic properties shared by most transition metals, arising from their incompletely filled d-orbitals. However, many transition metals are relatively unreactive/noble

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Question ID VK-159742