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CGP EDU Academic Team
Published on: August 13, 2026
A salt MX crystallising in KCl type of structure in which K + is forming fcc.
A
The nearest neighbour of Cl – ion is 6 K + ion
B
The packing fraction is given by 
C
The nearest neighbour of K + ion is 6 Cl –- ion
D
The second nearest neighbour of K + ion is 12 K + ion
Text Solution
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(a, c, d)
KCl crystallise in rock salt having six nearest neighbor of K + and Cl – ion. Packing fraction is 0.74. The number of 2 nd nearest neighbor of cation is 12.
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