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Which of the following solutions will exactly oxidize $25 mL$ of an acid solution of $0.1 M$ iron $(II)$ oxalate?

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Important Questions on Redox Reactions

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-2>Q 6

35 mL

sample of hydrogen peroxide gives off

500 mL

O_{2}

27^{\circ} C

and

1

atm

pressure. Determine volume strength of

H_{2} O_{2}

sample.

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-2>Q 7

0.80 g

of sample of impure potassium dichromate was dissolved in water and made upto

500 mL

solution.

25 mL

of this solution treated with excess of

KI

in acidic medium and

I_{2}

liberated required

24 mL

of a sodium thiosulphate solution.

30 mL

of this sodium thiosulphate solution required

15 mL

\frac{N}{20}

solution of pure potassium dichromate. What was the percentage of

K_{2} {Cr}_{2} O_{7}

in given sample?

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-2>Q 8

The following reaction describes the rusting of iron,

4 Fe + 3 O_{2} ⟶ 4 {Fe}^{3 +} + 6 O^{2 -} .

Which one of the following statements are correct:

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-2>Q 10

How many litres of

{Cl}_{2}

S . T . P .

will be liberated by oxidation of

NaCl

with

10 g {KMnO}_{4} : -

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-2>Q 12

A mixture of H₂SO₄ and H₂C₂O₄ (Oxalic acid) and some inert impurity weighing 3.185 g was dissolved in water and the solution made up to 1 litre, 10 mL of this solution required 3 mL of 0.1 N NaOH for complete neutralization. In another experiment, 100 mL of the same solution in hot condition required 4 mL of 0.02 M KMnO₄ solution for complete reaction. The wt. % of H₂SO₄ in the mixture was:

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-3>Q 14

1.0 g

sample of

{Fe}_{2} O_{3}

solid of

55.2 %

purity is dissolved in acid and reduced by heating the solution with zinc dust. The resultant solution is cooled and made up to

100.0 mL .

An aliquot of

25.0 mL

of this solution requires

17.0 mL

0.0167 M

solution of an oxidant for titration. Calculate the number of moles of electrons taken up by the oxidant in the reaction of the above titration.

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-3>Q 15

{KMnO}_{4}

oxidizes

X^{n +}

ion to

{XO}_{3}^{-},

itself changing to

{Mn}^{2 +}

in acid medium.

2.68 \times 10^{- 3}

mole

X^{n +}

requires

1.61 \times 10^{- 3}

mole

{MnO}_{4}^{-},

if the weight of

1 g

equivalent of

{XCl}_{n}

56 .

Report the value of

\frac{X}{n},

where

X

is the molar mass of

X^{n +} .

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Beta Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>EXERCISE-3>Q 23

Nitrous acid can act both as an oxidising as well as reducing agent.

Which of the following solutions will exactly oxidize 25 mL of an acid solution of 0.1 M ironII oxalate?

Important Questions on Redox Reactions

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Which of the following solutions will exactly oxidize $25 mL$ of an acid solution of $0.1 M$ iron $(II)$ oxalate?