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X=5Å Y=8Å Molar mass of solid ="259....


`X=5Å`
`Y=8Å`
Molar mass of solid `="259.8 g mol"^(-1)`
A solid crystallises in hexagonal lattice as shown in above figure. Density of the solid is 5g/ml. How many molecules are their in the given unit cell?
`("Avagadro's number "=6.023xx10^(23))`

A

2

B

3

C

4

D

6

Text Solution

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The correct Answer is:
A
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