EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 25 - d- and f- Block Elements>AP EAPCET 2021 (19-Aug Forenoon)>Q 9

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IMPORTANT

Earn 100

Which among the following species acts as a self-indicator?

14.29% studentsanswered this correctly

Important Questions on d- and f- Block Elements

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 25 - d- and f- Block Elements>AP EAPCET - 20 Aug 2021 Afternoon>Q 10

In the following reactions (i)

{MnO}_{2} + 4 HCl \to

and (ii)

2 {KMnO}_{4} + 16 HCl \to

, the number of moles of chlorine gas released respectively are

EASY

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 25 - d- and f- Block Elements>AP EAPCET - 20 Aug 2021 Afternoon>Q 11

A purple colored compound of Manganese

(X)

decomposes on heating to liberate oxygen and forms compounds of Manganese (

Y

and

Z

) compound

Z

reacts with

KOH

in presence of potassium nitrate to give compound

Y

. Compounds

X, Y

and

Z

respectively are

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 25 - d- and f- Block Elements>AP EAPCET 2018 (25-APR Shift-1)>Q 12

In lanthanides, with increase in atomic number atomic radius decreases, except for the element

\underline{X}

. What is

\underline{X}

?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 25 - d- and f- Block Elements>AP EAPCET 2018 (25-APR Shift-1)>Q 3

For which one of the following elements,

M^{3 +} ∣ M^{2 +}

standard electrode potential is more positive?