The s-Block Elements Test 44

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The s-Block Elements Test 44

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Weekly Quiz Competition

Question 1
1 / -0

Which element among the alkali metal is more reactive towards $$O_2$$ ?

A
Sodium

B
Potassium

C
Lithium

D
Caesium
Question 2
1 / -0

Alkali metals in each period have

A
Largest size

B
Lowest IE

C
Highest IE

D
Highest electronegativity

Solution
Question 3
1 / -0

Which of the following alkaline earth metal does not react with water?

A
$$Ba$$

B
$$Sr$$

C
$$Ca$$

D
$$Be$$
Question 4
1 / -0

An element Y reacts according to the following sequence.

Y $$ \xrightarrow { burns\ in\ O_{2}} $$ white solid $$ \underrightarrow { HCl (aq)} $$ solution $$ \underrightarrow { NaOH(aq)} $$ white precipitate $$ \xrightarrow { in \ excess \ of\ NaOH(aq)} $$ solution
What could be element $$ { Y } ?$$

A
$$Al$$

B
$$Ca$$

C
$$Mg$$

D
$$P$$
Question 5
1 / -0

Which of the following species will have the smallest hydrated radii?

A
$${ Li }^{ + }$$

B
$${ Na }^{ + }$$

C
$${ K }^{ + }$$

D
$${ Cs }^{ + }$$

Solution
Question 6
1 / -0

Which among the following is kinetically inert toward water?

A
$$Na$$

B
$$Be$$

C
$$Ca$$

D
$$K$$
Question 7
1 / -0

All the following substances react with water. The pair that gives the same gaseous product is:

A
$$K$$ and $${ KO }_{ 2 }$$

B
$$Na$$ and $${ NO }_{ 2 }{ O }_{ 2 }$$

C
$$Ca$$ and $${ CaH }_{ 2 }$$

D
$$Ba$$ and $${ BaO }_{ 2 }$$
Question 8
1 / -0

Which of the following properties of $$IA$$ group metals decreases as the atomic number rises:

A
Metallic character

B
lonic radius

C
Melting point

D
Density
Question 9
1 / -0

Select the correct statement about $$Mg^{2+}$$ ions :

A
These ions are concentrated more in intracelluar then in extracellular fluids in animal bodies

B
Activation of phosphate transfer enzyme takes place in their presencde

C
They are involved in carbohydrate metablism

D
All are correct statement

Solution
Question 10
1 / -0

Which does not gives reddish brown vapour on heating?

A
$$LiNO_{ 3 }$$

B
$$KNO_{ 3 }$$

C
$$Be(NO_{ 3 })_{ 2 }$$

D
$$Pb(NO_{ 3 })_{ 2 }$$

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Re-Attempt Weekly Quiz Competition

The s-Block Elements Test 44

Result

The s-Block Elements Test 44

Score

-

Rank

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SHARING IS CARING

Question 1

Sodium

Potassium

Lithium

Caesium

Question 2

Largest size

Lowest IE

Highest IE

Highest electronegativity

Solution

Question 3

$$Ba$$

$$Sr$$

$$Ca$$

$$Be$$

Question 4

$$Al$$

$$Ca$$

$$Mg$$

$$P$$

Question 5

$${ Li }^{ + }$$

$${ Na }^{ + }$$

$${ K }^{ + }$$

$${ Cs }^{ + }$$

Solution

Question 6

$$Na$$

$$Be$$

$$Ca$$

$$K$$

Question 7

$$K$$ and $${ KO }_{ 2 }$$

$$Na$$ and $${ NO }_{ 2 }{ O }_{ 2 }$$

$$Ca$$ and $${ CaH }_{ 2 }$$

$$Ba$$ and $${ BaO }_{ 2 }$$

Question 8

Metallic character

lonic radius

Melting point

Density

Question 9

These ions are concentrated more in intracelluar then in extracellular fluids in animal bodies

Activation of phosphate transfer enzyme takes place in their presencde

They are involved in carbohydrate metablism

All are correct statement

Solution

Question 10

$$LiNO_{ 3 }$$

$$KNO_{ 3 }$$

$$Be(NO_{ 3 })_{ 2 }$$

$$Pb(NO_{ 3 })_{ 2 }$$

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