Chemistry, asked by NEETPREP2019, 11 months ago

Plzzz explain how the answer is 4. A3B4

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Answered by akshad81

a2b is the correct option

NEETPREP2019: No, it is A3B4

Atharvakote: very very thx

NEETPREP2019: If you want to know how then the explanation is in your comment section @Atharvakote

Answered by Atharvakote

A4B3 IS THE ANSWER
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NEETPREP2019: Ok but your answer is wrong.

Atharvakote: how

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NEETPREP2019: See in NaCl. Na occupies Octahedral Voids and Cl occupies CCP arrangement. And the question says AB follows NaCl struc. so one atom will have Octahedral Voids and other CCP. Here since A occupies corners that means it will also occupy face centres and when one axis is removed two face centres will be removed so A= 1/8*8+1/2*4=3 and B will have Octahedral Voids so B=1/4*12+1*1=4. So it is A3B4

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