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Coordination complex of Cr

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Question#1

Please give the answer and explain how to find the following.

For [Cr(NH3)2(en)2]Cl3

a) give the oxidation number
b) give the coordination number of Cr

Question#2

Give the formula of the compound.

calcium triaquabromodicyanoferrate(II)

Question # 3

An atom in a certain compound uses sp^2 hybrid orbitals. How many sp^2 hybrid orbitals are there on the atom?

Question #4

In a certain molecule a certain atom uses sp3d hybrid orbitals. How many sp3d orbitals are on the atom?

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Solution Summary

A Cr complex structure is given, its oxidation state is found. A Ca complex is named and the number of hybrid orbitals used in hybridization is given.

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Q1. [Cr(NH3)2(en)2]Cl3

Let 'x' be oxidation state of Cr.

x +2(0) + 2(0) +3(-1) = 0. Hence x = +3

NH3 is monodentate and en is ...

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