A) \[ZnS{{O}_{4}}\]
B) \[CuS{{O}_{4}}\]
C) \[{{\left( N{{H}_{4}} \right)}_{2}}S{{O}_{4}}\]
D) \[N{{a}_{2}}S{{O}_{4}}\]
Correct Answer: B
Solution :
\[t'=5{{\log }_{e}}2\] \[\frac{1}{\lambda }=R\left( \frac{1}{{{2}^{2}}}-\frac{1}{{{3}^{2}}} \right)\]
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