NEET Chemistry Coordination Number Match the Following Question
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) [Ni(CN)4]2– | (i) Cobalt ion surrounded by 5 ammonia molecules |
| (b) [CoCl3(NH3)3] | (ii) Square planar geometry |
| (c) [CoCl3(NH3)5]2+ | (iii) Cobalt ion surrounded by 6 groups |
| (d) [Fe(CN)6]4– | (iv) Octahedral coordination number |
a-ii, b-iii, c-i, d-iv
a-i, b-ii, c-iii, d-iv
a-iv, b-iii, c-ii, d-i
a-iii, b-iv, c-i, d-ii
Correct Answer
Detailed Explanation
[Ni(CN)4]2– has a square planar geometry (ii). [CoCl3(NH3)3] corresponds to cobalt surrounded by 6 groups (iii). [CoCl3(NH3)5]2+ has a coordination number of 5 (i). [Fe(CN)6]4– is a clear example of an octahedral coordination number (iv), confirming the matches in option A.
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