A) \[0.01\,M\,N{{a}_{2}}S{{O}_{4}}(aq)\]
B) \[0.01\,M\,KN{{O}_{3}}(aq)\]
C) 0.015 M urea(aq)
D) 0.015 M glucose(aq)
Correct Answer: A
Solution :
Molecules having maximum number of ions will have maximum value of boiling point. In the given options, 0.01 M \[N{{a}_{2}}S{{O}_{4}}\] contains maximum number of ions. So, 0.01 M \[N{{a}_{2}}S{{O}_{4}}\] has highest boiling point.
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