HARD

Earn 100

100 mL solution of FeC₂O₄ And FeSO₄ Are completely oxidised by 60 mL of 0.02M KMnO₄ In acid medium the resulting solution is then reduced by Zn + dil HCl.

The reduced solution is again oxidised completely by 40 mL of 0.02M KMnO₄. Calculate normality of FeC₂O₄ And FeSO₄ In mixture

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Important Questions on Redox Reactions

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

0.45 g

acid of molecular mass

90

was neutralise by

20

ml

0.5 N KOH

. The basicity of the acid is

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The number of moles of electron required to reduce

0.2

mole of

{Cr}_{2} O_{7}^{- 2}

{Cr}^{+ 3}

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

4 g

of copper was dissolved in

conc . {HNO}_{3}

. The copper nitrate thus obtained gave

5 g

of its oxide on strong heating the equivalent weight of copper is

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

$50 mL$ of $0.2 N HCl$ is titrated against $0.1 N NaOH$ solution. The titration is discontinued after adding $50 mL$ of $NaOH$ solution. The remaining titration is completed by adding $0.5 N KOH$ solution. What is the volume of $KOH$ solution required for completing the titration ?

EASY

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The volume of 0.1 M strong dibasic acid sufficient to neutralize 1g of a base that furnishes 0.04 mole of

O H^{-}

in aqueous solution is :

EASY

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

How much

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

(molecular weight

= 294.19

) is required to prepare one litre of

0.1 N

solution ?

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The strengths of

5.6

volume hydrogen peroxide (of density

1 g / mL

) in terms of mass percentage and molarity

(M)

respectively, are: (Take molar mass of hydrogen peroxide as

34 g / mol

)

EASY

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The volume (in

mL

) of

0.1 N NaOH

required to neutralise

10 mL of 0.1 N

phosphinic acid is ____________.

EASY

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The strength of $11.2$ volume solution of $H_{2} O_{2}$ is

[Given that, the molar mass of $H = 1 g m o l^{- 1}$ and $O = 16 g m o l^{- 1}$ ]

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

100 m L

of a water sample contains

0.81 g

of calcium bicarbonate and

0.73

g of magnesium bicarbonate. The hardness of this water sample expressed in terms of equivalents of

C a C O_{3}

is:
(molar mass of calcium bicarbonate is

162 g m m o l^{- 1}

and magnesium bicarbonate is

146 g m o l^{- 1})

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

Calculate normality of the solution obtained by mixing

100 ml

0.2 M H_{2} {SO}_{4}

and

200 ml

0.1 M HCl

solutions.

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

What is the hardness of a water sample

(

in terms of equivalents of

{CaCO}_{3})

containing

10^{- 3} M {CaSO}_{4}

(

Molar mass of

{CaSO}_{4} = 136 g {mol}^{- 1})

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

A $20.0 mL$ solution containing $0.2 g$ impure $H_{2} O_{2}$ reacts completely with $0.316 g$ of ${KMnO}_{4}$ in acid solution. The purity of $H_{2} O_{2}$ (in $%$ ) is______ (mol. wt. of $H_{2} O_{2} = 34$ ; mol. wt. of ${KMnO}_{4} = 158$ )

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

A fuel cell generates electricity by using methanol as fuel and

O_{2}

as the oxidant. Calculate the equivalent weight of methanol.

EASY

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The volume strength of

8.9 M H_{2} O_{2}

solution calculated at

273 K

and 1 atm is

........ (R = 0 .0821 L atm K^{- 1} {mol}^{- 1})

(rounded off to the nearest integer)

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

A $100 mL$ solution was made by adding $1.43 g$ of ${Na}_{2} {CO}_{3} . {xH}_{2} O .$ The normality of the solution is $0.1 N$ . The value of $x$ is _______

(The atomic mass of $Na$ is $23 g / mol$ )

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The volume, in

mL

, of

0.02 {MK}_{2} {Cr}_{2} O_{7}

, solution required to react with

0.288 g

of ferrous oxalate in acidic medium is

\dots \dots \dots \dots

(Molar mass of

Fe = 56 {gmol}^{- 1}

)

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

In order to oxidize a mixture of one mole of each of

F e C_{2} O_{4}, F e_{2} {(C_{2} O_{4})}_{3}, F e S O_{4}

and

F e_{2} {(S O_{4})}_{3}

in acidic medium, the number of moles of

K M n O_{4}

is:

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

The volume strength of

1 M H_{2} O_{2}

is:

(Molar mass of

H_{2} O_{2} = 34 g mol^{- 1}

)

HARD

Chemistry>Physical Chemistry>Redox Reactions>Redox Reactions and Titration

In the reaction of oxalate with permanganate in acidic medium, the number of electrons involved in producing one molecule of

{CO}_{2}

is:

100 mL solution of FeC2O4 And FeSO4 Are completely oxidised by 60 mL of 0.02M KMnO4 In acid medium the resulting solution is then reduced by Zn + dil HCl. The reduced solution is again oxidised completely by 40 mL of 0.02M KMnO4. Calculate normality of FeC2O4 And FeSO4 In mixture

Important Questions on Redox Reactions

Learn and Prepare for any exam you want !

100 mL solution of FeC₂O₄ And FeSO₄ Are completely oxidised by 60 mL of 0.02M KMnO₄ In acid medium the resulting solution is then reduced by Zn + dil HCl.

The reduced solution is again oxidised completely by 40 mL of 0.02M KMnO₄. Calculate normality of FeC₂O₄ And FeSO₄ In mixture