Metals and Non-metals Test

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Metals and Non-metals Test - 16

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following property is generally not shown by metals (except some metals)?

A
Electrical conduction

B
Sonorous in nature

C
Dullness

D
Ductility

Solution

Dullness is generally not shown by metals (except some metals).
Question 2
1 / -0

The ability of metals to be drawn into thin wire is known as

A
Ductility

B
Malleability

C
Sonorousity

D
Conductivity

Solution

The ability of metals to be drawn into thin wire is known as ductility.
Question 3
1 / -0

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

(i) Good thermal conductivity or good heat conduction

(ii) Good conduction of electricity

(iii) Ductility

(iv) High melting point

A
(i) and (ii)

B
(i) and (iii)

C
(ii) and (iii)

D
(i) and (iv)

Solution

Electrical conductivity and ductility have no relevance for a cooking utensil. These properties also do not enhance cooking.
Question 4
1 / -0

Which one of the following metals do not react with cold as well as hot water?

A
Sodium (Na)

B
Calcium (Ca)

C
Magnesium (Mg)

D
Iron (Fe)

Solution

Sodium and calcium react vigorously with water. magnesium reacts with hot water to form magnesium oxide. Iron reacts with steam.
Question 5
1 / -0

Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam?

A
FeO

B
Fe₂O₃

C
Fe₃O₄

D
Fe₂O₃and Fe₃O₄

Solution

Following equation shows the reaction between iron and steam:

3Fe + 4H₂O → Fe₃O₄+ 4H₂
Question 6
1 / -0

What happens when calcium is treated with water?

(i) It does not react with water

(ii) It reacts violently with water

(iii) It reacts less violently with water

(iv) Bubbles of hydrogen gas formed stick to the surface of calcium

A
(i) and (iv)

B
(ii) and (iii)

C
(i) and (ii)

D
(iii) and (iv)

Solution

Calcium reacts less violently with water. it starts floating because it sticks to hydrogen bubbles.

Ca + 2H₂O → Ca(OH)₂+ H₂
Question 7
1 / -0

Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

A
H₂SO₄

B
HCl

C
HNO₃

D
All of these

Solution

Nitric acid is a potent oxidizing agent. It reacts with hydrogen to form water.
Question 8
1 / -0

The composition of aqua-regia is

A
Dil. HCl: Conc. HNO₃(3:1)

B
Conc. HCl: Dil. HNO₃(3:1)

C
Conc. HCl: Conc. HNO₃(3:1)

D
Dil. HCl: Dil. HNO₃(3:1)
Question 9
1 / -0

Which of the following are not ionic compounds?

(i) KCl

(ii) HCl

(iii) CCl₄

(iv) NaCl

A
(i) and (ii)

B
(ii) and (iii)

C
(iii) and (iv)

D
(i) and (iii)

Solution

These are covalent compounds. Both the constituents in each compound are non-metals.
Question 10
1 / -0

Which one of the following properties is not generally exhibited by ionic compounds?

A
Solubility in water

B
Electrical conductivity in solid state

C
High melting and boiling points

D
Electrical conductivity in molten state

Solution

Free ions are required for electrical conductivity. In ionic compounds, free ions are not available in solid state.

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Re-Attempt Weekly Quiz Competition

Metals and Non-metals Test - 16

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Metals and Non-metals Test - 16

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Question 1

Electrical conduction

Sonorous in nature

Dullness

Ductility

Solution

Question 2

Ductility

Malleability

Sonorousity

Conductivity

Solution

Question 3

(i) and (ii)

(i) and (iii)

(ii) and (iii)

(i) and (iv)

Solution

Question 4

Sodium (Na)

Calcium (Ca)

Magnesium (Mg)

Iron (Fe)

Solution

Question 5

FeO

Fe2O3

Fe3O4

Fe2O3 and Fe3O4

Solution

Question 6

(i) and (iv)

(ii) and (iii)

(i) and (ii)

(iii) and (iv)

Solution

Question 7

H2SO4

HCl

HNO3

All of these

Solution

Question 8

Dil. HCl: Conc. HNO3(3:1)

Conc. HCl: Dil. HNO3(3:1)

Conc. HCl: Conc. HNO3(3:1)

Dil. HCl: Dil. HNO3(3:1)

Question 9

(i) and (ii)

(ii) and (iii)

(iii) and (iv)

(i) and (iii)

Solution

Question 10

Solubility in water

Electrical conductivity in solid state

High melting and boiling points

Electrical conductivity in molten state

Solution

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Fe₂O₃

Fe₃O₄

Fe₂O₃and Fe₃O₄

H₂SO₄

HNO₃

Dil. HCl: Conc. HNO₃(3:1)

Conc. HCl: Dil. HNO₃(3:1)

Conc. HCl: Conc. HNO₃(3:1)

Dil. HCl: Dil. HNO₃(3:1)