1

JEE Advanced 2021 Paper 2 Online

Numerical

+2

-0

A sample (5.6 g) containing iron is completely dissolved in cold dilute HCl to prepare a 250 mL of solution. Titration of 25.0 mL of this solution requires 12.5 mL of 0.03 M KMnO

(Assume : KMnO

Use : Molar mass of iron as 56 g mol

The value of x is ______.

_{4}solution to reach the end point. Number of moles of Fe^{2+}present in 250 mL solution is x $$\times$$ 10^{$$-$$2}(consider complete dissolution of FeCl_{2}). The amount of iron present in the sample is y% by weight.(Assume : KMnO

_{4}reacts only with Fe^{2+}in the solutionUse : Molar mass of iron as 56 g mol

^{$$-$$1})The value of x is ______.

Your input ____

2

JEE Advanced 2021 Paper 2 Online

Numerical

+2

-0

A sample (5.6 g) containing iron is completely dissolved in cold dilute HCl to prepare a 250 mL of solution. Titration of 25.0 mL of this solution requires 12.5 mL of 0.03 M KMnO

(Assume : KMnO

Use : Molar mass of iron as 56 g mol

The value of y is ______.

_{4}solution to reach the end point. Number of moles of Fe^{2+}present in 250 mL solution is x $$\times$$ 10^{$$-$$2}(consider complete dissolution of FeCl_{2}). The amount of iron present in the sample is y% by weight.(Assume : KMnO

_{4}reacts only with Fe^{2+}in the solutionUse : Molar mass of iron as 56 g mol

^{$$-$$1})The value of y is ______.

Your input ____

3

JEE Advanced 2021 Paper 2 Online

Numerical

+4

-0

Ozonolysis of ClO

_{2}produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is __________.Your input ____

4

JEE Advanced 2016 Paper 1 Offline

Numerical

+3

-0

In neutral or faintly alkaline solution, 8 moles of permanganate anion quantitative oxidise thiosulphate anions to produce X moles of a sulphur containing product. The magnitude of X is....

Your input ____

Questions Asked from Redox Reactions (Numerical)

Number in Brackets after Paper Indicates No. of Questions

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