Redox Reactions questions
1186 published questions with worked solutions.
- Which of the following reactions involves oxidation and reduction? [WB-JEE 2006]
- The oxidation state shown by silicon when it combines with strongly electropositive metals
- In which of the following compounds, the oxidation number of iodine is fractional?
- Mn^ 2+ can be converted into Mn^ 7+ by reacting with
- In which of the following reactions, hydrogen is acting as an oxidising agent? [BCECE 2003]
- Reaction of Br_2 with Na_2CO_3 in aqueous solution gives sodium bromide and sodium bromate with evolution of CO_2 gas. The number...
- How many electrons are involved in the conversion of KMnO_4 to K_2MnO_4 in basic medium?
- aK_2Cr_2O_7 + bKCl + cH_2SO_4 xCrO_2Cl_2 + yKHSO_4 + zH_2O The above equation balances when [Kerala CEE 2004]
- In permonosulphuric acid (H_2SO_5), the oxidation number of sulphur is
- The oxidation state of Cr in chromium trioxide is
- Oxidation number of S in SO_4^ 2-
- State the oxidation number of carbonyl carbon in methanal and methanoic acid respectively [Guj CET 2010]
- In acid medium Zn reduces nitrate ion to NH_4^+ ion according to the reaction Zn + NO_3^- Zn^ 2+ + NH_4^+ + H_2O (unbalanced) How...
- In the conversion of Br_2 to BrO_3^-, the oxidation number of Br changes from [Jamia Millia Islamia 2008]
- For the reaction, NH_3 + OCl^- N_2H_4 + Cl^- occurring in basic medium, the coefficient of N_2H_4 in the balanced equation will be
- Among NH_3, HNO_3, NaN_3 and Mg_3N_2; the number of molecules having nitrogen in negative oxidation state is
- Oxidation state of sulphur in Na_2S_2O_3 and Na_2S_4O_6 [DCE 2006]
- Which quantities are conserved in all oxidation-reduction reactions? [UP SEE 2009]
- In the reaction, SO_2 + 2H_2S 3S + 2H_2O, the substance oxidised is
- Which of the following chemical reactions depicts the oxidising behaviour of H_2SO_4? [AIEEE 2006]
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