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JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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Number of Zn{Zn} atoms present in 122 g122 {~g} of ZnO{ZnO} is (Atomic wt. of Zn=65{Zn}=65 )
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Correct option: C
3NA2\frac{3 N_A}{2}
Option C (3NA2\frac{3 N_A}{2}) is correct because 122 g of ZnO corresponds to 1.5 moles of Zn, which is 1.5 times Avogadro's number.

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