Redox Reactions questions
1186 published questions with worked solutions.
- Which of the following reactions is an example of a redox reaction ?
- Hydrogen peroxide oxidises [Fe(CN)_6]^ 4- to [Fe(CN)_6]^ 3- in acidic medium but reduces [Fe(CN)_6]^ 3- to [Fe(CN)_6]^ 4- in...
- The oxidation states of Cr in [Cr(H_2O)_6]Cl_3, [Cr(C_6H_6)_2], and K_2[Cr(CN)_2(O)_2(O_2)(NH_3)] respectively are :
- Given that E^ _ O_2/H_2O = +1.23 V; E^ _ S_2O_8^ 2- /SO_4^ 2- = 2.05 V; E^ _ Br_2/Br^- = +1.09 V; E^ _ Au^ 3+ /Au = +1.4 V. The...
- In order to oxidise a mixture of one mole of each of FeC_2O_4, Fe_2(C_2O_4)_3, FeSO_4 and Fe_2(SO_4)_3 in acidic medium, the...
- The strength of 11.2 volume solution of H_2O_2 is: [Given that molar mass of H = 1 g mol^ -1 and O = 16 g mol^ -1 ]
- The correct order of the oxidation states of nitrogen in NO, N_2O, NO_2 and N_2O_3 is:
- An example of a disproportionation reaction is:
- The volume strength of 1 M H_2O_2 is: (Molar mass of H_2O_2 = 34 g mol^ -1 )
- Iodine reacts with concentrated HNO_3 to yield Y along with other products. The oxidation state of iodine in Y, is:
- 25 ml of the given HCl solution requires 30 mL of 0.1 M sodium carbonate solution. What is the volume of this HCl solution...
- In the reaction of oxalate with permanganate in acidic medium, the number of electrons involved in producing one molecule of CO_2...
- The chemical nature of hydrogen peroxide is:
- The redox reaction among the following is :
- The strengths of 5.6 volume hydrogen peroxide (of density 1g/mL) in terms of mass percentage and molarity (M), respectively, are...
- Given below are two statements: one is labeled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In...
- The strongest reducing agent among the following is:
- Which of the following reactions are disproportionation reactions? (A) Cu^+ → Cu^ 2+ + Cu (B) 3MnO_4^ 2- + 4H^+ → 2MnO_4^- +...
- In acidic medium, K_2Cr_2O_7 shows oxidising action as represented in the half reaction: Cr_2O_7^ 2- + XH^+ + Ye^ → 2A + ZH_2O....
- Given below are two statements: Statement (I): Potassium hydrogen phthalate is a primary standard for standardisation of sodium...
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