Materials Metals And Non-Metals Test

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Materials Metals And Non-Metals Test - 5

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Weekly Quiz Competition

Question 1
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Which one of the following options is the difference between the chlorides of metals and non–metals?

A
Chlorides of metals are coloured while those of non–metals are colourless.

B
Chlorides of metals conduct electricity while those of non–metals do not conduct electricity.

C
Chlorides of metals are stable while those of non–metals are unstable.

D
Chlorides of metals are solid compounds while those of non–metals are liquid compounds.
Question 2
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The corrosion of iron can be avoided by

A
reacting it with dilute HCl

B
reacting it with oxygen and water

C
putting it in a solution of copper sulphate

D
coating iron with a layer of tin or chromium
Question 3
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Which of the following reactions is not true according to the chemical properties of metals and non–metals?

A
2Ca + O₂ → 2CaO

B
S + 2H₂O → S(OH)₂ + H₂

C
P + HCl → no reaction

D
S + 4HNO₃ → SO₂ + 4NO₂ + 2H₂O

Solution

Non-metals do not react with water or steam to release hydrogen gas.
Question 4
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The elements which form positive ions by losing electrons are known as

A
oxides

B
ores

C
metal

D
alloy
Question 5
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Which of the following elements is a non-metal?

A
Silicon

B
Magnesium

C
Iron

D
Titanium
Question 6
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Which of the following substances exhibits properties between metals and non-metals?

A
Oxides

B
Metalloids

C
Compounds

D
Atom
Question 7
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Which of the following options is a metal?

A
Aluminum

B
Hydrogen

C
Nitrogen

D
Oxygen
Question 8
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Smelting is a process in which metal oxides are reduced with

A
aluminum

B
copper

C
oxygen

D
carbon
Question 9
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Which of the following statements gives the reason due to which hydrogen is placed in group 1, along with metals?

A
Because hydrogen is not ductile

B
Because hydrogen can`t be polished

C
Because hydrogen forms a positive ion

D
Because hydrogen is a bad conductor of electricity
Question 10
1 / -0

The impurities present in minerals are known as _______.

A
ore

B
gangue

C
oxides

D
agent

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Re-Attempt Weekly Quiz Competition

Materials Metals And Non-Metals Test - 5

Result

Materials Metals And Non-Metals Test - 5

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SHARING IS CARING

Question 1

Chlorides of metals are coloured while those of non–metals are colourless.

Chlorides of metals conduct electricity while those of non–metals do not conduct electricity.

Chlorides of metals are stable while those of non–metals are unstable.

Chlorides of metals are solid compounds while those of non–metals are liquid compounds.

Question 2

reacting it with dilute HCl

reacting it with oxygen and water

putting it in a solution of copper sulphate

coating iron with a layer of tin or chromium

Question 3

2Ca + O2 → 2CaO

S + 2H2O → S(OH)2 + H2

P + HCl → no reaction

S + 4HNO3 → SO2 + 4NO2 + 2H2O

Solution

Question 4

oxides

ores

metal

alloy

Question 5

Silicon

Magnesium

Iron

Titanium

Question 6

Oxides

Metalloids

Compounds

Atom

Question 7

Aluminum

Hydrogen

Nitrogen

Oxygen

Question 8

aluminum

copper

oxygen

carbon

Question 9

Because hydrogen is not ductile

Because hydrogen can`t be polished

Because hydrogen forms a positive ion

Because hydrogen is a bad conductor of electricity

Question 10

ore

gangue

oxides

agent

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2Ca + O₂ → 2CaO

S + 2H₂O → S(OH)₂ + H₂

S + 4HNO₃ → SO₂ + 4NO₂ + 2H₂O