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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)
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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