Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 33

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The total spin and paramagnetism (B.M.) of ferrocyanide ion are respectively :

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Important Questions on The d- and f-Block Elements

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 35

A metal oxide is yellow when hot and white when cold. The metal oxide is

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 36

A blue colouration is not obtained when

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 37

Which element is having the lowest melting and boiling point :

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 38

Density of which of the following element is highest

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 40

Permanent magnets are generally made of alloys to :

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 42

C r_{2} O_{7}^{2 -} \overset{Y}{\underset{X}{⇌}} C r O_{4}^{2 -}; X

and

Y

are respectively

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 44

The product of oxidation of

I^{-}

with

{MnO}_{4}^{-}

ions in alkaline medium is

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-1>Q 46

Maximum magnetic moment is shown by :