D and F Block Elements Test

Result

D and F Block Elements Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Which element belongs to d – block

A
Na

B
Ca

C
Cu

D
Ar

Solution

Cu; because last electron enters d-orbital (3d¹⁰ 4s¹).
Question 2
1 / -0

Variable valency is shown by

A
Na

B
Cu

C
Mg

D
Al

Solution

Cu due to the presence of vacant d-orbital.
Question 3
1 / -0

The coinage metals are

A
Iron, Cobalt, Nickel

B
Copper and Zinc

C
Copper, Silver and Gold

D
Gold and Platinum

Solution

Copper, silver and gold; all the three were used for making coins.
Question 4
1 / -0

Which of the following structure is that of a coinage metal

A
2, 8, 1

B
2, 8, 18, 1

C
2, 8, 8

D
2, 18, 8, 3

Solution

2, 8, 18, 1 = Cu
Question 5
1 / -0

Transitional elements are named transition elements because their characters are

A
In between s and p - block elements

B
Like that of p and d - block elements

C
Like that of p and d - block elements

D
They are like inactive elements

Solution

In between s and p-block elements.
Question 6
1 / -0

Which of the following transition metal is present in misch metal

A
La

B
Sc

C
Ni

D
Cr

Solution

Misch metal is an alloy of rare earth metals with composition :

Rare earth metals –    94.95%

Iron (Fe) –    5%

S, C, Ca, Al... –    Traces
Question 7
1 / -0

Which of the following statements is not true in regard to transition elements

A
They readily form complex compounds

B
They show variable valency

C
All their ions are colourless

D
Their ions contain partially filled d -electron levels

Solution

"All their ions are colourless" this sentence is false because they are 90% coloured and only few are colourless.

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Re-Attempt Weekly Quiz Competition

D and F Block Elements Test - 2

Result

D and F Block Elements Test - 2

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Question 1

Na

Ca

Cu

Ar

Solution

Question 2

Na

Cu

Mg

Al

Solution

Question 3

Iron, Cobalt, Nickel

Copper and Zinc

Copper, Silver and Gold

Gold and Platinum

Solution

Question 4

2, 8, 1

2, 8, 18, 1

2, 8, 8

2, 18, 8, 3

Solution

Question 5

In between s and p - block elements

Like that of p and d - block elements

Like that of p and d - block elements

They are like inactive elements

Solution

Question 6

La

Sc

Ni

Cr

Solution

Question 7

They readily form complex compounds

They show variable valency

All their ions are colourless

Their ions contain partially filled d -electron levels

Solution

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