Redox and Equivalent ConceptHard
Question
A quantity of 1 g of metal ion, M2+ was discharged by the passage of 1.81 × 1022 electrons. The atomic mass of the metal is
Options
A.33.27
B.99.81
C.66.54
D.133.08
Solution
$\underset{A\text{ gm}}{M^{2 +}} + \underset{2N_{A}e^{-}}{2e^{-}} \rightarrow M$
$\therefore 1g \rightarrow \frac{2N_{A}}{A} \times 1 = 1.81 \times 10^{22} \Rightarrow A = 66.54$
Create a free account to view solution
View Solution FreeMore Redox and Equivalent Concept Questions
A quantity of 15.8 g of KMnO4 can be decolourized in acidic medium by (K = 39, Mn = 55, Fe = 56)...Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect :...The following data are obtained in an experiemnt -Given : λm∞(H+) = 350Ω-1 cm2mol-1 ; λm∞(A-)...The oxidation number of K in KO2 is...In which of the folowing compounds, nitrogen exhibits highest oxidation state ?...