Redox Reactions questions
1186 published questions with worked solutions.
- Given below are two statements: Statement I : Aqueous solution of K_2Cr_2O_7 is preferred as a primary standard in volumetric...
- The correct group of halide ions which can be oxidised by oxygen in acidic medium is :
- See the following chemical reaction: Cr_2O_7^ 2- +XH^++6Fe^ 2+ YCr^ 3+ +6Fe^ 3+ +ZH_2O The sum of X, Y and Z is
- KMnO_4 is titrated with ferrous ammonium sulphate hexahydrate in presence of dilute H_2SO_4. Number of water molecules produces...
- 20 mL of calcium hydroxide was consumed when it was reacted with 10 mL of unknown solution of H_2SO_4. Also 20 mL standard...
- In Chromyl chloride, the oxidation state of chromium is (+) ___________.
- The total change in the oxidation state of manganese involved in the reaction of KMnO_4 and potassium iodide in the acidic medium...
- In which of the following reactions the hydrogen peroxide acts as a reducing agent?
- Which one amongst the following are good oxidizing agents? A. Sm^ 2+ B. Ce^ 2+ C. Ce^ 4+ D. Tb^ 4+ Choose the most appropriate...
- When Fe_ 0.93 O is heated in presence of oxygen, it converts to Fe_2O_3. The number of correct statement/s from the following...
- Potassium dichromate acts as a strong oxidizing agent in acidic solution. During this process, the oxidation state changes from
- '25 volume' hydrogen peroxide means
- The set of correct statements is : (i) Manganese exhibits +7 oxidation state in its oxide. (ii) Ruthenium and Osmium exhibit +8...
- The strength of 50 volume solution of hydrogen peroxide is _________g/L (Nearest integer). Given : Molar mass of H_2O_2 is 34 g...
- The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is ________.
- A sample of a metal oxide has formula M_ 0.83 O_ 1.00 . The metal M can exist in two oxidation states +2 and +3. In the sample of...
- H_2O_2 acts as a reducing agent in :
- Consider a titration of potassium dichromate solution with acidified Mohr's salt solution using diphenylamine as indicator. The...
- The oxidation number of Mn in the product of alkaline oxidative fusion of MnO_2 is
- Which of the following is a redox reaction ?
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