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Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques

The effective atomic number of CrCr (atomic no. 2424) in [Cr(NH3)6]Cl3[Cr(NH_3)_6]Cl_3 is

A

35

B

27

C

33

D

36

Answer

33

Explanation

Solution

Effective atomic number, EAN = number of electrons in Cr+2×Cr+2\times number of ligands −- charge =24+2×6−3=33=24+2\times 6-3=33