A) \[9.64\times {{10}^{23}}\]
B) \[96.4\times {{10}^{23}}\]
C) \[1.205\times {{10}^{23}}\]
D) \[12.05\times {{10}^{23}}\]
Correct Answer: A
Solution :
1 mole sulphur\[({{S}_{8}})=8\]mole atoms 0.2 mole sulphur \[=8\times 0.2=1.6\] mole atoms \[=1.6\times 6.023\times {{10}^{23}}\]atoms \[=9.64\times {{10}^{23}}\]atoms
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