Chemistry Crash Course JEE Advanced>Chapter 21 - The d- and f-Block Elements>Exercise 1>Q 18

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IMPORTANT

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Which of the following statement(s) correctly explain(s) the existence of ${Mn}_{2} O_{7}$ but non-existence of ${MnF}_{7}$ ?

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Important Questions on The d- and f-Block Elements

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Chemistry

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Chemistry Crash Course JEE Advanced>Chapter 21 - The d- and f-Block Elements>Exercise 1>Q 19

Select the incorrect statement(s).

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Chemistry

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Chemistry Crash Course JEE Advanced>Chapter 21 - The d- and f-Block Elements>Exercise 1>Q 20

In chromate ion,

Cr (VI)

has

d^{0}

configuration. Select the incorrect statement(s).

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Chemistry

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Chemistry Crash Course JEE Advanced>Chapter 21 - The d- and f-Block Elements>Exercise 1>Q 22

Which of following statement(s) is/are correct about actinoids?

HARD

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Chemistry Crash Course JEE Advanced>Chapter 21 - The d- and f-Block Elements>Exercise 1>Q 23

Select the correct statement(s) regarding alloys of transition metals.

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Chemistry

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Chemistry Crash Course JEE Advanced>Chapter 21 - The d- and f-Block Elements>Exercise 1>Q 24

Identify the total number of compounds which does not make yellow precipitate with $2, 4$ -DNP but show positive test with cold alkaline ${KMnO}_{4}$ .

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Chemistry Crash Course JEE Advanced>Chapter 21 - The d- and f-Block Elements>Exercise 1>Q 25

How many number of following ions for which all octahedral complexes are paramagnetic irrespective of ligand

{Sc}^{3 +}, {Ti}^{3 +}, V^{3 +}, {Cr}^{3 +}, {Mn}^{3 +}, {Fe}^{3 +}, {Co}^{3 +}, {Ni}^{3 +}