JEE Advance - Chemistry (2009 - Paper 2 Offline - No. 18)
The coordination number of Al in the crystalline state of AlCl$$_3$$ is ___________.
Answer
6
Explanation
AlCl3 exists as a close packed lattice of chloride
ions Clā
with Al3+ occupying octahedral holes.
Hence, coordination number of Al3+ is = 6.
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