Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 26

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IMPORTANT

Earn 100

Which is correct statement for ${Cr}_{2} O_{7}^{2 -}$ ?

16.67% studentsanswered this correctly

Important Questions on The d- and f-block Elements

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Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 27

{KMnO}_{4}

acts as an oxidizing agent in alkaline medium. When alkaline

{KMnO}_{4}

is treated with

KI

, iodide ion is oxidized to

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IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 28

Element used in cancer treatment is

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IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 29

Which of the following statements is not correct regarding lanthanides and actinides?

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Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 30

$Ce (Z = 58)$ and $Yb (Z = 70)$ exhibit stable $+ 4$ and $+ 2$ oxidation states, respectively. This is because

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IMPORTANT

Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 31

Which of the following actinoids does not contain any electron in

f

subshell?

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Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 32

Which of the following statements is incorrect?

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Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 33

The incorrect order is

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Chemistry Crash Course JEE Main>Chapter 27 - The d- and f-block Elements>Level 2>Q 34

The incorrect statement regarding transition metals showing is