Periodic Table and Periodicity - Applications
Q. Which coordination compound has a square planar geometry?
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A.
[Cu(NH3)4]2+
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B.
[Ni(CN)4]2-
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C.
[CoCl4]2-
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D.
[Fe(H2O)6]3+
Solution
The complex [Ni(CN)4]2- has a square planar geometry due to the presence of d8 metal ion.
Correct Answer: B — [Ni(CN)4]2-
Q. Which element has the highest electronegativity?
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A.
Fluorine
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B.
Oxygen
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C.
Chlorine
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D.
Nitrogen
Solution
Fluorine has the highest electronegativity value of 3.98 on the Pauling scale.
Correct Answer: A — Fluorine
Q. Which of the following metals is most likely to be oxidized?
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A.
Gold
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B.
Silver
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C.
Copper
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D.
Sodium
Solution
Sodium is highly reactive and easily oxidized compared to the other metals listed.
Correct Answer: D — Sodium
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