Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 20

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Earn 100

${Fe}^{+ 3}$ is more stable than ${Fe}^{+ 2}$ , the reason is/are :

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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-2>Q 21

Addition of non-metals like

B

and

C

to the interstitial sites of a transition metal results the metal :

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 22

The highest oxidation state shown by transition element is :

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 23

Amongst

{CuF}_{2}, {CuCl}_{2}

and

{CuBr}_{2}

:

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 24

{CuSO}_{4} (aq .) + 4 {NH}_{3} ⟶ X,

then

X

is :

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 25

When excess of sodium thiosulphate is added to dil.

{AgNO}_{3}

solution a soluble compound

X

is formed. However, when dil.

{Na}_{2} S_{2} O_{3}

solution is addeed to conc.

{AgNO}_{3}

solution a white ppt. turning yellow and finally black ppt. of

Y

is obtained. Which is/are not correct pair:

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 26

Which of the following statement(s) is (are) correct with reference to ferrous and ferric ions

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 27

Select the incorrect statement(s):

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Beta Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>EXERCISE-2>Q 28

Cuprous chloride can be prepared: