S-Block Elements Test

Result

S-Block Elements Test - 13

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following has maximum lattice energy ?

A
Li₂O

B
Na₂O

C
MgO

D
BaO
Question 2
4 / -1

Which of the following pairs of elements possess diagonal relationship ?

A
Li and Mg

B
Li and Al

C
Na and Mg

D
Cs and Ba
Question 3
4 / -1

A sample of portaland cement contain 23% SiO₂ , 3% Al₂O₃ and 2% Fe₂O₃ then what would be its silica module (n) ?

A
3.83

B
28

C
21.73

D
4.6

Solution
Question 4
4 / -1

For a good quality of cement, the ratio of silica (SiO₂) and alumina (Al₂O₃) must be between...

A
3 to 5

B
2.5 to 4

C
6 to 7.5

D
4 to 5.5
Question 5
4 / -1

Chlorophyll and heamoglobin are complex of ‘‘______ ’’ and ‘‘______’’ respectivelly.

A
Mg²⁺ and Ca²⁺

B
Na⁺ and K⁺

C
Mg²⁺ and Fe²⁺

D
Cl^– and Fe²⁺
Question 6
4 / -1

Which of the following metal ions plays an important role in muscle contraction ?

A
K⁺

B
Mg²⁺

C
Na⁺

D
Ca²⁺
Question 7
4 / -1

White enamel of our teeth is ...

A
Ca₃(PO₄)₂

B
CaCl₂

C
CaF₂

D
CaBr₂
Question 8
4 / -1

Two mole of magnesium nitride on reacting with an excess of water gives :

A
One mole of ammonia

B
Two moles of nitric acid

C
Four moles of ammonia

D
Three moles of ammonia

Solution
Question 9
4 / -1

Which of the following metal is used in windows of X - ray tubes ?

A
Be

B
Mg

C
Ba

D
Al

Solution
Question 10
4 / -1

Which of the following is not a Mg ore ?

A
Magnesite

B
Gypsum

C
Dolomite

D
Carnalite

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S-Block Elements Test - 13

Result

S-Block Elements Test - 13

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Question 1

Li2O

Na2O

MgO

BaO

Question 2

Li and Mg

Li and Al

Na and Mg

Cs and Ba

Question 3

3.83

28

21.73

4.6

Solution

Question 4

3 to 5

2.5 to 4

6 to 7.5

4 to 5.5

Question 5

Mg2+ and Ca2+

Na+ and K+

Mg2+ and Fe2+

Cl– and Fe2+

Question 6

K+

Mg2+

Na+

Ca2+

Question 7

Ca3(PO4)2

CaCl2

CaF2

CaBr2

Question 8

One mole of ammonia

Two moles of nitric acid

Four moles of ammonia

Three moles of ammonia

Solution

Question 9

Be

Mg

Ba

Al

Solution

Question 10

Magnesite

Gypsum

Dolomite

Carnalite

User

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Li₂O

Na₂O

Mg²⁺ and Ca²⁺

Na⁺ and K⁺

Mg²⁺ and Fe²⁺

Cl^– and Fe²⁺

K⁺

Mg²⁺

Na⁺

Ca²⁺

Ca₃(PO₄)₂

CaCl₂

CaF₂

CaBr₂