Metals and Non-metals Test

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Metals and Non-metals Test - 35

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is non-ductile?

A
Bromine

B
Copper

C
Aluminium

D
Iron

Solution

Metals are generally ductile and malleable. Since, bromine is non-metal, it is not ductile. Rest copper, aluminium and iron are metals and hence, are ductile.
Question 2
1 / -0

Which one of the following is non - ductile?

A
Sulphur

B
Potassium

C
Calcium

D
Zinc

Solution

Sulphur is a non-metal and thus is non - malleable and non - ductile. Ductility is the physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking.
Question 3
1 / -0

Metals reacts with water to form $$\ {W}$$.

A
$$W =$$ acidic oxide, carbon dioxide

B
$$W =$$ acidic oxide, oxygen

C
$$W =$$ metal oxide, hydrogen

D
$$W =$$ metal hydroxide, oxygen

Solution

Metals reacts with water to form a metal hydroxide or metal oxides and hydrogen gas. Option $$C$$ is correct as it covers all possibilties of $$W$$
Question 4
1 / -0

Which of the following is the only liquid metal which is a poor conductor of heat, but a fair conductor of electricity?

A
Copper

B
Calcium

C
Mercury

D
Rhodium

Solution

Mercury is the only metallic element that is liquid at standard conditions and if we compare to most metals, it is a poor conductor of heat, but a fair conductor of electricity.
Question 5
1 / -0

Match the following.
a) Hardest metal 1) Silver
b) Reddish brown metal 2) Mercury
c) Best conductor of electricity 3) Osmium
d) Liquid metal 4) Copper

A
$$a - 4, b - 3, c - 2, d - 1$$

B
$$a - 4, b - 2, c - 3, d - 4$$

C
$$a - 2, b - 1, c - 4, d - 3$$

D
$$a - 3, b - 4, c - 1, d - 2$$
Solution
- Osmium is the hardest metal. It is hard enough to scratch glass.
- Silver is the best conductor of electricity.
- Copper is the second-best conductor and it is reddish-brown in color.
- All metals except mercury are solid at room temperature. Mercury is the only metal that is present in the liquid state.
Hence, the correct order is a−3, b−4, c−1, d−2.
Question 6
1 / -0

Between copper and sodium, which metal is more reactive?

A
Copper

B
Sodium

C
Both are equally reactive

D
None of the above

Solution

The reactivity series follows the order:
$$K>Na>Ca>Mg>Al>Zn>Fe>Pb>H>Cu>Hg>Ag>Au$$
Thus, Sodium is more reactive than copper.
Question 7
1 / -0

Mark the correct statement.

A
Some metals are found in earth's crust in the free state

B
Metals at the bottom of activity series are least reactive

C
Gold, silver can never be found in free state

D
Both A and B

Solution

Some metals are found in the earth's crust in the free state. Some are found in the form of their compounds.
The metals at the bottom of the activity series are least reactive.
Metals like gold and silver are non-reactive and hence are found in a free state only.
Hence, option $$D$$ is correct.
Question 8
1 / -0

Mark the correct option:
a) Pure metal from the electrolyte is deposited at the anode.
b) The soluble impurities go into the solution.
c) Insoluble impurities are known as anode mud.

A
a, b

B
b, c

C
a, c

D
All statements are correct

Solution

On passing the current through the electrolyte, pure metal from the anode dissolves into the electrolyte. An equivalent amount of pure metal from the electrolyte is deposited on the cathode.
The soluble impurities get dissolved in the electrolytic solution and the insoluble impurities settle down below the anode and are known as Anode mud.

Thus, Option $$B$$ is correct
Question 9
1 / -0

Melting of iron occurs at _____ temperature than sulphur.

A
Higher

B
Lower

C
Equal

D
None of the baove

Solution

The melting point of metals will be higher than non-metal. So iron, which is a metal, will have a higher melting point.
Question 10
1 / -0

Metals in the middle of the activity series are generally present as _______ in nature.

A
carbonates and halides

B
oxides and chlorides

C
sulphides and carbonates

D
all of the above

Solution

Metals in the middle of the activity series are generally present as sulphides or carbonates in nature. They are moderately reactive. Thus, option $$C$$ is correct.

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a) Hardest metal	1) Silver
b) Reddish brown metal	2) Mercury
c) Best conductor of electricity	3) Osmium
d) Liquid metal	4) Copper

Metals and Non-metals Test - 35

Result

Metals and Non-metals Test - 35

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Question 1

Bromine

Copper

Aluminium

Iron

Solution

Question 2

Sulphur

Potassium

Calcium

Zinc

Solution

Question 3

$$W =$$ acidic oxide, carbon dioxide

$$W =$$ acidic oxide, oxygen

$$W =$$ metal oxide, hydrogen

$$W =$$ metal hydroxide, oxygen

Solution

Question 4

Copper

Calcium

Mercury

Rhodium

Solution

Question 5

$$a - 4, b - 3, c - 2, d - 1$$

$$a - 4, b - 2, c - 3, d - 4$$

$$a - 2, b - 1, c - 4, d - 3$$

$$a - 3, b - 4, c - 1, d - 2$$

Solution

Question 6

Copper

Sodium

Both are equally reactive

None of the above

Solution

Question 7

Some metals are found in earth's crust in the free state

Metals at the bottom of activity series are least reactive

Gold, silver can never be found in free state

Both A and B

Solution

Question 8

a, b

b, c

a, c

All statements are correct

Solution

Question 9

Higher

Lower

Equal

None of the baove

Solution

Question 10

carbonates and halides

oxides and chlorides

sulphides and carbonates

all of the above

Solution

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