S-Block Elements Test

Result

S-Block Elements Test - 1

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Number of nucleons in D₂ molecule

A
1

B
2

C
3

D
4
Question 2
1 / -0

HCl is added to following oxides. Which one would give H₂O₂.

A
MnO₂

B
PbO₂

C
BaO

D
None of these

Solution

MnO₂,PbO₂and BaO will not give H₂O₂with HCl.MnO and PbO₂will give Cl₂ and BaO will react with HCl to give BaCl₂ and water.
Question 3
1 / -0

As the alkaline earth metals (except Be) tend to lose their valence electrons readily they act as

A
Weak oxidising agent

B
Weak reducing agent

C
Strong oxidising agent

D
Strong reducing agent

Solution

Second group elements are show strong reducing properties but less 1st group element show less.
Question 4
1 / -0

The first ionisation energies of alkaline earth metals are higher than the those of the alkali metals. This is because.

A
There is increases in the nuclear charge of the alkaline earth metals

B
There is decreases in the nuclear charge of the alkaline earth metals

C
There is no change in the nuclear charge

D
None of these

Solution

The size of alkaline earth metals is smaller as compared to its corresponding alkali metals and its effective nuclear charge is also more than that of its corresponding metals.
Question 5
1 / -0

Fusion mixture is

A
Na₂CO₃+ K₂ CO₃

B
Na₂CO₃+ NaHCO₃

C
Na₂CO₃+ NaOH

D
Na₂CO₃+ K₂SO₄

Solution

Fusion Mixture is Na₂CO₃+ K₂CO_{3 .}

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

S-Block Elements Test - 1

Result

S-Block Elements Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

1

2

3

4

Question 2

MnO2

PbO2

BaO

None of these

Solution

Question 3

Weak oxidising agent

Weak reducing agent

Strong oxidising agent

Strong reducing agent

Solution

Question 4

There is increases in the nuclear charge of the alkaline earth metals

There is decreases in the nuclear charge of the alkaline earth metals

There is no change in the nuclear charge

None of these

Solution

Question 5

Na2CO3 + K2 CO3

Na2CO3 + NaHCO3

Na2CO3 + NaOH

Na2CO3 + K2SO4

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

MnO₂

PbO₂

Na₂CO₃+ K₂ CO₃

Na₂CO₃+ NaHCO₃

Na₂CO₃+ NaOH

Na₂CO₃+ K₂SO₄