Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 40

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The number of moles of $K_{2} {Cr}_{2} O_{7}$ in an acidic medium required to oxidize one mole of ${Cu}_{3} P$ to $CuO$ and $H_{3} {PO}_{4}$ is

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Important Questions on Redox Reactions

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IMPORTANT

Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 41

Volume of

{Al}_{2} {({Cr}_{2} O_{7})}_{3}

of molarity

0.1 M

required to react with

10 mL

of

0.018 M

{FeSO}_{4}

solution is

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Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 42

A solution containing

1.6 \times 10^{- 3}

moles of

{Br}^{-}

ions require

(x)

mole of

{MnO}_{4}^{-}

in basic medium for oxidation of

{Br}^{-}

to

{BrO}_{3}^{-}

. Then

(x)

is

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Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 43

The metal with the highest oxidation state present in

K_{2} {CrO}_{4}, {NbCl}_{5}

and

{MnO}_{2}

is:

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Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 44

The number of electrons required to reduce chromium completely in

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

to

{Cr}^{3 +}

in acidic medium, is

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Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 45

In balancing the reaction,

{xH}_{2} S + 2 {NaNO}_{3} + 2 HCl \to y S + zNO + kNaCl + 4 H_{2} O

, one would get

x, y, z

and

K,

respectively, as

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Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 46

In the reaction

{SO}_{2} + 2 H_{2} S ⟶ 3 S + 2 H_{2} O,

the substance that is oxidised is:

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Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 47

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:

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Chemistry Crash Course NEET>Chapter 6 - Redox Reactions>Level 2>Q 48

For

{Zn}^{2 +} / Zn, E ° = - 0.76 V

, for

{Ag}^{+} / Ag, E ° = 0.799 V

. The correct statement is: