A) \[9\times {{10}^{24}}\]
B) \[3\times {{10}^{24}}\]
C) \[0.75\times {{10}^{24}}\]
D) \[1.0\times {{10}^{24}}\]
Correct Answer: D
Solution :
[d] An, \[Al{{F}_{3}}\]the number of F is 3 for one \[Al{{F}_{3}}\]molecule \[3{{F}^{-}}\equiv 1\] formula unit of \[Al{{F}_{3}}\] \[3.0\times {{10}^{24}}{{F}^{-}}\equiv \frac{1}{3}\times 3.0\times {{10}^{24}}Al{{F}_{3}}\]units
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