Redox Reactions questions
1186 published questions with worked solutions.
- 100 mL of 0.1 N hypo decolourised iodine by the addition of x gram of crystalline copper sulphate to excess of KI. The value of...
- In the reaction, I _2+2 S _2 O _3^ 2- 2 I ^-+ S _4 O _6^ 2- , equivalent weight of iodine will be equal to
- 50 mL of 1 M HCl, 100 mL of 0.5 M HNO_3, and x mL of 5 M H_2SO_4 are mixed together and the total volume is made up to 1.0 L with...
- n-factors for Cu_2S and CuS when they react with KMnO_4 in acidic medium are
- n-factors of ferrous oxalate and ferric oxalate when they react with K_2Cr_2O_7 in acidic medium are
- The oxidation state of oxygen of H_2O_2 in the final products when it reacts with ClO_3^- is
- 1 mol of IO_3^- ions is heated with excess of I^- ions in the presence of acidic conditions as per the following equation: IO...
- n-factor for the following reaction is FeS _2 Fe _2 O _3+ SO _2
- In the following reaction As _2 S _3+ NO _3^- AsO _4^ 3- + SO _4^ 2- + NO + H ^+, the number of electrons involved in the...
- An acid solution of 0.2 mol of KReO_4 was reduced with Zn and then titrated with 1.6 Eq of acidic KMnO_4 solution. For the...
- Dissolved O_2 in water is determined by using a redox reaction: 2 Mn ^ 2+ (aq)+4 OH ^-(aq)+ O _2(g) 2 MnO _2(s)+2 H _2 O (l). How...
- In the following reaction As _2 S _3+ NO _3^- AsO _4^ 3- + SO _4^ 2- + NO + H ^+, the number of electrons involved in the...
- The oxidation state of oxygen of H_2O_2 in the final products when it reacts with As_2O_3 is
- 1 L M/10 Ba(MnO_4)_2 in acidic medium can be oxidized completely with 1/6 L of x M ferric oxalate. The value of x is
- A 200 mL solution of I_2 is divided into two unequal parts. Part I reacts with hypo solution in acidic medium and requires 8 mL...
- A bottle of H_2O_2 is labelled as 10 vol H_2O_2. 112 mL of this solution of H_2O_2 is titrated against 0.04 M acidified solution...
- The molarity of H_2O_2 of the 11.2 V (volume strength) is
- 20.8 g of MCl_x (M=137) on reaction with excess of K_2SO_4 yields 23.3 g of sulphate of metal M. Derive the value of x.
- Cr(NH_3)_xCl_3(aq) solution is titrated with HCl(aq): Cr(NH _3)_x Cl _3(aq)+x HCl (aq) x NH _4^+(aq)+ Cr ^ 3+ (aq)+(x+3) Cl...
- 1 M Cr_2O_7^ 2- solution is z equiv. L^ -1 . Thus z is ___________
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