Materials Metals and Non Metals Test

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Materials Metals and Non Metals Test - 26

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following metals were used as money in ancient times?

A
Gold

B
Copper

C
Iron

D
All of the above

Solution

Silver, copper, and iron were used as currency in the olden days. Gold, copper, and silver in ancient times were used as money in order to allow people to trade, that is, exchange goods and services over long distances.
Question 2
1 / -0

Which of the following is/are use(s) of aluminium?

A
It is used in paints.

B
It is used for packaging.

C
It is used to make electrical wires.

D
All of the above
Solution
The uses of aluminium are:
It is used in paints
It is used for packing food
It is used to make electrical wires
Question 3
1 / -0

Which was the first metal used by humans?

A
Iron

B
Copper

C
Zinc

D
Gold

Solution

Metals were discovered and starts using approximately 5000 years ago. First metal to be used was the copper. Then after silver and gold. These metals were found in free state in nature.
Question 4
1 / -0

Which of the following statements is correct?

A
All metals are ductile.

B
All non-metals are ductile.

C
Generally, metals are ductile.

D
Some non-metals are ductile.

Solution

Metals are generally malleable — that is, they can be hammered or pressed permanently out of shape without breaking or cracking — as well as fusible (able to be fused or melted) and ductile (able to be drawn out into a thin wire).

Typically they are malleable and ductile, deforming under stress without cleaving. However, there are some metals which are not ductile.
For example, sodium and mercury.

Non-metals on the other hand are not ductile.
Question 5
1 / -0

Which of the following element is sonorous?

A
Hydrogen

B
Sulphur

C
Iron

D
All of above

Solution

Sonority means making a sound. It is a characteristic property of a metal. Iron being a metal is sonorous whereas hydrogen and sulphur are non-metals.
So, the correct option is $$C$$
Question 6
1 / -0

Which of the following metal is used in atomic energy and space projects?

A
Titanium

B
Zirconium

C
Sodium

D
All of above

Solution

Titanium, sodium and zirconium metals are used in atomic energy and space science projects.
Question 7
1 / -0

Solutions of copper sulphate, iron sulphate and zinc sulphate are prepared and marked I, II and III respectively. Few pieces of aluminium are added to each solution. After some time a change will be observed in:

A
I and II

B
II and III

C
III and I

D
All of the above

Solution

This type of comparison can be done by looking at the position of metals in the reactivity series.
In this series, the metals at the top are more reactive so there will be a displacement reaction.
It is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.
Here we can see that Aluminium is on the top of zinc, iron, and copper,
so it will displace all of them from their salt and it will form a salt of aluminium in the solution.
The reaction between the solutions of copper sulphate, iron sulphate and zinc sulphate and Aluminium are given below:

$$I.\ 2Al + 3CuSO_{4} \rightarrow 3Cu + Al_{2}(SO_{4})_{3}$$

$$II.\ 2Al + 3FeSO_{4} \rightarrow 3Fe + Al_{2} (SO_{4})_{3}$$

$$III.\ 2Al + 3ZnSO_{4} \rightarrow 3Zn + Al_{2}(SO_{4})_{3}$$
Question 8
1 / -0

Tungsten filament is:

A
non-polar covalent substance

B
polar covalent substance

C
ionic substance

D
metallic substance

E
noble gas

Solution

Tungsten filament represents metallic substance.
Tungsten is a metal. Other examples of metals include iron, copper, aluminium, magnesium, sodium, lead, zinc etc.
Question 9
1 / -0

Drawing of ductile metals into thin wires results in:

A
increase in molecular separation

B
increase in stress in the metal

C
reduction of cross-sectional area

D
all of these

Solution

On application of tensile forces to a ductile material displaces the molecules, and hence increases in molecular separation which results in an increase in the stress level inside the metal. This process also results in increase in length and a decrease in the cross-sectional area of the metal.
Question 10
1 / -0

Which of the following can be drawn into thin wires?

A
$$Br$$

B
$$Al$$

C
$$Cl$$

D
$$O$$

Solution

Metals can be drawn into thin wires. Aluminium is a metal among the given elements and it has ductility.

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Re-Attempt Weekly Quiz Competition

Materials Metals and Non Metals Test - 26

Result

Materials Metals and Non Metals Test - 26

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Question 1

Gold

Copper

Iron

All of the above

Solution

Question 2

It is used in paints.

It is used for packaging.

It is used to make electrical wires.

All of the above

Solution

Question 3

Iron

Copper

Zinc

Gold

Solution

Question 4

All metals are ductile.

All non-metals are ductile.

Generally, metals are ductile.

Some non-metals are ductile.

Solution

Question 5

Hydrogen

Sulphur

Iron

All of above

Solution

Question 6

Titanium

Zirconium

Sodium

All of above

Solution

Question 7

I and II

II and III

III and I

All of the above

Solution

Question 8

non-polar covalent substance

polar covalent substance

ionic substance

metallic substance

noble gas

Solution

Question 9

increase in molecular separation

increase in stress in the metal

reduction of cross-sectional area

all of these

Solution

Question 10

$$Br$$

$$Al$$

$$Cl$$

$$O$$

Solution

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