Metals and Non- Metals Test

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Metals and Non- Metals Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following reactants will react with each other to undergo a displacement reaction?

A
Zinc sulphate and Copper turnings

B
Iron sulphate and Copper turnings

C
Zinc sulphate and Iron nail

D
Copper sulphate and Zinc granules

Solution

A displacement reaction takes place when one metal is more reactive than the other metal in the salt solution as per the activity series of metals. As copper is less reactive than both zinc and iron, the first two reactions cannot take place. Iron is less reactive than zinc, so the third reaction also cannot take place. Zinc is more reactive than copper; hence, it can displace copper from its salt solution and undergo a displacement reaction.
Question 2
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A piece of aluminium foil is dropped in an aqueous solution of NaOH. The gas released during the reaction gives a pop sound, when a burning matchstick is brought near to it. Which of the following gases is released during the reaction?

A
Oxygen

B
Nitrogen

C
Hydrogen

D
Sulphur dioxide

Solution

Aluminium is a metal and NaOH is a base. When these two react, hydrogen is evolved. Moreover, hydrogen is the only gas which produces a pop sound on coming in contact with a burning splinter or a matchstick.
Question 3
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Powdered sulphur is heated. It is introduced into a glass jar and covered with a lid. Now, water is added into the jar, lid is placed again and then is shaken well. When a blue litmus is introduced into this jar, it turns red. Which of the following is present inside the jar?

A
Nitric acid

B
Hydrochloric acid

C
Sulphurous acid

D
Copper sulphate

Solution

On heating, sulphur burns to produce sulphur dioxide. This reacts with water to form sulphurous acid.
Question 4
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Why do gold ornaments generally not lose their lustre even after a long time of usage?

A
Gold is the most reactive metal.

B
Gold is one of the least reactive metals.

C
Gold becomes more lustrous when it comes in contact with air and water.

D
Gold is a very hard metal and air has no effect on it.

Solution

Gold is placed low in the reactivity series of metals as its reactivity with the atmospheric gases or water vapours is negligible. Thus, the shine or lustre on gold ornaments does not go off because it is one of the least reactive metals.
Question 5
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Which of the following statements is not correct?

A
Copper can be formed into wires.

B
Aluminium can be beaten into thin sheets.

C
The solution of magnesium oxide turns red litmus blue.

D
Gold, in contact with lemon juice, turns blackish in colour.

Solution

Gold does not react with citric acid as it is the least reactive metal.
Question 6
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Food cans are coated with tin and not with zinc because

A
zinc has a higher melting point than tin

B
zinc is costlier than tin

C
zinc is more reactive than tin

D
zinc is less tenacious than tin

Solution

Zinc is more reactive than tin, so it is more likely to dissolve in the liquid stored in the cans (zinc is more easily oxidised than tin because it is placed higher in the reactivity series).
Question 7
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Metals are malleable because

A
they have high melting points

B
they are good conductors of heat and electricity

C
their atoms have strong attractive forces between them

D
they have a tendency to lose electrons

Solution

Metals are malleable because of strong attractive forces between their atoms.

Question 8

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Match the following:

Column A	Column B
(a) Bromine	i. Brittle
(b) Mercury	ii. Non-metallic conductor
(c) Graphite	iii. Non-metallic liquid
(d) Zinc	iv. Metallic liquid

(a) - iii, (b) - iv, (c) - ii, (d) - i

(a) - iv, (b) - iii, (c) - ii, (d) - i

(a) - iii, (b) - ii, (c) - iv, (d) - i

(a) - iii, (b) - i, (c) - ii, (d) - iv

Solution

In this matching format, bromine is a non-metallic liquid, while mercury is a metallic liquid. Graphite is a non-metallic conductor, while zinc is known for its brittleness.

Question 9
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Which of the following statements is not true about metals?

A
Metals react with sodium hydroxide.

B
More reactive metals can displace less reactive metals from their compounds.

C
Metals react with acids.

D
Metals do not react at all with water.

Solution

Some metals react with water to form metal hydroxide and hydrogen gas.
Question 10
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________ is a non-metal that all living beings need for respiration.

A
Carbon

B
Oxygen

C
Nitrogen

D
Hydrogen

Solution

Oxygen is the non-metal which is needed by the living organism for respiration.

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Re-Attempt Weekly Quiz Competition

Metals and Non- Metals Test - 3

Result

Metals and Non- Metals Test - 3

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Question 1

Zinc sulphate and Copper turnings

Iron sulphate and Copper turnings

Zinc sulphate and Iron nail

Copper sulphate and Zinc granules

Solution

Question 2

Oxygen

Nitrogen

Hydrogen

Sulphur dioxide

Solution

Question 3

Nitric acid

Hydrochloric acid

Sulphurous acid

Copper sulphate

Solution

Question 4

Gold is the most reactive metal.

Gold is one of the least reactive metals.

Gold becomes more lustrous when it comes in contact with air and water.

Gold is a very hard metal and air has no effect on it.

Solution

Question 5

Copper can be formed into wires.

Aluminium can be beaten into thin sheets.

The solution of magnesium oxide turns red litmus blue.

Gold, in contact with lemon juice, turns blackish in colour.

Solution

Question 6

zinc has a higher melting point than tin

zinc is costlier than tin

zinc is more reactive than tin

zinc is less tenacious than tin

Solution

Question 7

they have high melting points

they are good conductors of heat and electricity

their atoms have strong attractive forces between them

they have a tendency to lose electrons

Solution

Question 8

(a) - iii, (b) - iv, (c) - ii, (d) - i

(a) - iv, (b) - iii, (c) - ii, (d) - i

(a) - iii, (b) - ii, (c) - iv, (d) - i

(a) - iii, (b) - i, (c) - ii, (d) - iv

Solution

Question 9

Metals react with sodium hydroxide.

More reactive metals can displace less reactive metals from their compounds.

Metals react with acids.

Metals do not react at all with water.

Solution

Question 10

Carbon

Oxygen

Nitrogen

Hydrogen

Solution

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