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(a) Using valence bond theory predict the geometry and magnetic behaviour of [Cr(NH3)6]3+ ion [Cr = 24].

(b) Write IUPAC name of: [Pt (NH 3)2Cl2]

Asked by Topperlearning User 15th April 2014, 10:16 AM
Answered by Expert

(a) The oxidation number of chromium (Cr) in [Cr(NH3)6]3+ ion is +3. Electronic configuration of Cr is [Ar]3d54s1.

Since the resulting complex [Cr(NH3)6]3+ involves d2sp3 hybridisation, it is octahedral in shape. The presence of three unpaired electrons in the complex makes the complex paramagnetic.

(b) IUPAC name of [Pt(NH3)2Cl2] is Diamminedichloridoplatinum(II).

Answered by Expert 15th April 2014, 12:16 PM
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