JEE ADV 2021 CHEMISTRY QN 3,4 SOLUTION
3.For the given close packed structure of a salt made of cation X and anion Y shown below (ions of only one face are shown for clarity), the packing fraction is approximately (packing fraction = packing efficiency100)
4.The calculated spin only magnetic moments of [Cr(NH3)6]3+ and [CuF6]3– in BM, respectively, are
(Atomic numbers of Cr and Cu are 24 and 29, respectively
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