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In order to prepare one litre 1N solution of $K M n O_{4},$ how many grams of $K M n O_{4}$ are required, if the solution to be used in acid medium for oxidation?

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Important Questions on Redox Reactions

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

For a reaction

{xNH}_{3} + {yO}_{2} \to zNO + {wH}_{2} O

, if

x = 4

then

y, z, w

are respectively

HARD

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

For the redox reaction

${xMnO}_{4}^{-} + {yH}_{2} C_{2} O_{4} + {zH}^{+} \to {mMn}^{2 +} + {nCO}_{2} + {pH}_{2} O$

HARD

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

2 {MnO}_{4}^{-} + {bC}_{2} O_{4}^{2 -} + {cH}^{+} \to {xMn}^{2 +} + {yCO}_{2} + {zH}_{2} O

If the above equation is balanced with integer coefficients, the value of

c

is _______ . (Round off to the Nearest Integer).

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

{KMnO}_{4}

oxidises oxalic acid in acidic medium. The number of

{CO}_{2}

molecules produced per mole of

{KMnO}_{4}

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

Consider the following reaction:

x {MnO}_{4}^{-} + y C_{2} O_{4}^{2 -} + {zH}^{+} ⟶ x {Mn}^{2 +} + 2 y {CO}_{2} + \frac{z}{2} H_{2} O

The values of x, y and z in the reaction are, respectively:

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

For the redox reaction

{MnO}_{4}^{-} + C_{2} O_{4}^{2 -} + H^{+} \to {Mn}^{2 +} + {CO}_{2} + H_{2} O

, the correct coefficients of the reactants for the balanced reaction are respectively

{MnO}_{4}^{-}, C_{2} O_{4}^{2 -}

and

H^{+}

HARD

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

The reaction of sulphur in alkaline medium is given below:

$S_{8 (s)} + a {OH}_{(aq)}^{-} \to b S_{(aq)}^{2 -} + c S_{2} O_{3 (aq)}^{2 -} + d H_{2} O_{(l)}$

The values of ' $a$ ' is______ (Integer answer)

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

For the reaction:

I^{-} + C l O_{3}^{-} + H_{2} S O_{4} \to C l^{-} + H S O_{4}^{-} + I_{2}

The correct statement(s) in the balanced equation is/are:

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

What are the coefficients $x, y, z, p, q, r$ and $s$ , respectively, in the following balanced equation?

${xHNO}_{2 (aq)} + {yKMnO}_{4 (aq)} + {zH}_{2} {SO}_{4 (aq)} \to {pHNO}_{3 (aq)} + q K_{2} {SO}_{4 (aq)} + {rMnSO}_{4 (aq)} + {sH}_{2} O_{(II)}$

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

The coefficients $x, y$ and $z$ in the given redox reaction are respectively

$x {Cr}_{2} O_{7}^{2 -} + y {SO}_{2} + z H^{+} \to {Cr}^{+ 3} + {SO}_{4}^{2 -} + H_{2} O$

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

Which of the following statement is not correct?

EASY

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

The number of moles of

{KMnO}_{4}

required to oxidise one equivalent of

KI

in the presence of sulphuric acid is-

EASY

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

In the balanced equation of the following reaction, the ratio of $a / b$ is

${aCaCO}_{3} + {bH}_{3} {PO}_{4} \to {pCa}_{3} {({PO}_{4})}_{2} + {qCO}_{2} + {rH}_{2} O$

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

Balance the following equation

{xKMnO}_{4} + {yK}_{2} C_{2} O_{4} + {zH}^{+} \to {pMn}^{2 +} + {qCO}_{2} + {rH}_{2} O

the correct values of

x, y

and

z

are

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

For the redox reaction:

{MnO}_{4}^{-} + C_{2} O_{4}^{2 -} + H^{+} \to {Mn}^{2 +} + {CO}_{2} + H_{2} O

What are the correct coefficients of the reactants for the balanced equation?

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is _____ .

EASY

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

What are $x$ and $y$ in the following reaction?

$x {Pb}_{3} O_{4} \to yPbO + O_{2}$

EASY

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

How many electrons are involved in oxidation of

{KMnO}_{4}

in basic medium ?

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

The reaction,

K_{2} {Cr}_{2} O_{7} + m {FeSO}_{4} + n H_{2} {SO}_{4} \to {Cr}_{2} {({SO}_{4})}_{3} + p {Fe}_{2} {({SO}_{4})}_{3} + K_{2} {SO}_{4} + q H_{2} O

when balanced,

m, n, p, and q

are, respectively:

MEDIUM

Chemistry>Physical Chemistry>Redox Reactions>Balancing of Redox Reactions

Assuming complete ionization, same moles of which of the following compounds will require the least amount of acidified

K M n O_{4}

for complete oxidation?

In order to prepare one litre 1N solution of KMnO4, how many grams of KMnO4 are required, if the solution to be used in acid medium for oxidation?

Important Questions on Redox Reactions

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In order to prepare one litre 1N solution of $K M n O_{4},$ how many grams of $K M n O_{4}$ are required, if the solution to be used in acid medium for oxidation?