Advertisements
Advertisements
Question
Balance the following equation by the ion electron method.
\[\ce{Zn + NO^-_3 ->Zn^2+ + NO}\] (in acid medium)
Advertisements
Solution
Half reactions are
\[\ce{Z^0n -> Zn^2+}\] ...........(1)
\[\ce{N^{+5}O^-_3 -> N^2+O}\] ......(2)
\[\ce{Zn -> Zn^2+ + 2e^-}\] .........(3)
\[\ce{NO^-_3 + 3e^- + 4H^+ -> NO + 2H2O}\] ........(4)
\[\ce{3Zn -> 3Zn^2+ + 6e^-}\] .......(5) [Eq. (3) × 3]
\[\ce{2NO^-_3 + 6e^- + 8H^+ -> 2NO + 4H2O}\] ...........(6) [Eq. (4) × 2]
\[\ce{3Zn + 2NO^-_3 + 8H^+ -> 3Zn^2+ + 2NO + 4H2O}\]
APPEARS IN
RELATED QUESTIONS
When 6.3 g of sodium bicarbonate is added to 30 g of acetic acid solution, the residual solution is found to weigh 33 g. The number of moles of carbon dioxide released in the reaction is
Which of the following contains the same number of carbon atoms as in 6 g of carbon-12.
Distinguish between oxidation and reduction.
Balance the following equation by the oxidation number method.
\[\ce{KMnO4 + Na2SO3 -> MnO2 + Na2SO4 + KOH}\]
Balance the following equation by the oxidation number method.
\[\ce{Cu + HNO3 -> Cu(NO3)2 + NO2 + H2O}\]
Balance the following equation by the ion electron method.
\[\ce{KMnO4 + SnCl2 + HCl -> MnCl2 + SnCl4 + H2O + KCl}\]
Reducing agent is a species that ____________.
Which of the following reagents is used for the following conversion?
\[\ce{CH3 - CH = CH - CHO -> CH3 - CH = CH - CH2OH}\]
Which one of the following CANNOT act as a reducing agent?
Which is the best oxidizing agent among the following?
