Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 72

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Potassium permanganate works as oxidising agent both in acidic and basic medium. In both state, product obtained by ${KMnO}_{4}$ is respectively ______.

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Important Questions on The d- and f-Block Elements

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 73

Which of the following group of

d -

block does not contain transition element?

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 74

The gas responsible for underwater corrosion of iron and the product of corrosion, respectively, are -

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 75

Oxalic acid when treated with potassium permanganate in the presence of an acid, produces:

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 76

The number of moles of

{Br}_{2}

produced when two moles of potassium permanganate are treated with excess potassium bromide in aqueous acid medium is:

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 77

{MnO}_{2}

when fused with

KOH

and oxidized in air gives a dark green compound

X

. In acidic solution,

X

undergoes disproportion to give an intense purple compound

Y

and

{MnO}_{2}

. The compounds

X

and

Y

. respectively, are

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 78

In an alkaline medium, the reaction of hydrogen peroxide with potassium permanganate produces a compound in which the oxidation state of

Mn

is _______.

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 79

The number of moles of

{Br}_{2}

produced when two moles of potassium permanganate are treated with excess potassium bromide in aqueous acid medium is:

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Chemistry Crash Course NEET>Chapter 19 - The d- and f-Block Elements>Level 1>Q 80

Which of the following properties is not the characteristic of transition elements?