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Question
Match the properties with the elements of 3d series:
| (i) | lowest enthalpy of atomisation | (p) | Sc |
| (ii) | shows maximum number of oxidation states | (q) | Mn |
| (iii) | transition metal that does not form coloured compounds |
(r) | Zn |
| (s) | Ti |
Options
(i) (r), (ii) (q), (iii) (p)
(i) (r), (ii) (s), (iii) (p)
(i) (p), (ii) (q), (iii) (r)
(i) (s), (ii) (r), (iii) (p)
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Solution
(i) (r), (ii) (q), (iii) (p)
Explanation:
Zinc has no unpaired electrons in 3d or 4s orbitals, so enthalpy of atomization is low.
Mn = 3d54s2 shows +2, +3, +4, +5, +6 and +7 oxidation states, maximum number in 3d series.
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