NCERT Class XII Chemistry
Chapter - The Solid State
Questions with Solutions
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Question : 42
Total: 50
A compound is formed by two elements M and N. The element N forms ccp and atoms of M occupy 1/3rd of tetrahedral voids. What is the formula of the compound?
Solution:
Suppose no. of atoms of element N = a
Number of tetrahedral voids = 2a
Number of atoms of elementM = ×
× 2 a =
Ratio of M and N=
: a = 2 : 3
Formula of the compound= M 2 N 3
Number of tetrahedral voids = 2a
Number of atoms of element
Ratio of M and N
Formula of the compound
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