MCQ on Materials Metals and Non Metals Class 8
Choose the correct answer.
Question 1.
Which one of the following is not a non – metal ?
A) Iron
B) Copper
C) Aluminium
D) Sulphur
Answer:
D) Sulphur
Question 2.
_________ is the liquid metal
A) Iodine
B) Gold
C) Silver
D) Mercury
Answer:
D) Mercury
Question 3.
The property of a material to produce a particular sound when dropped down is
A) Sonority
B) Malleability
C) Ductility
D) None of these
Answer:
A) Sonority
Question 4.
The property of drawing a material to make fine wires is called.
A) Malleability
B) Ductility
C) Conductivity
D) None of these
Answer:
B) Ductility
Question 5.
Magnesium oxide is
A) Basic oxide
B) Acidic oxide
C) Conductivity
D) None of the above
Answer:
A) Basic oxide
Question 6.
Sulphur dioxide is
A) Basic oxide
B) Acidic oxide
C) Neutral oxide
D) Dual nature oxide
Answer:
B) Acidic oxide
Question 7.
Generally non-metallic oxides are ________ in nature.
A) Basic
B) Acidic
C) Neutral
D) Dual nature
Answer:
B) Acidic
Question 8.
The property of changing the metals in to sheets is ________
A) Malleability
B) Ductility
C) Conductivity of heat
D) Electric conductivity
Answer:
A) Malleability
Question 9.
Non-metal which is lustrous
A) Iodine
B) Bromine
C) Chlorine
D) Sulphate
Answer:
A) Iodine
Question 10.
The non-metal which is in liquid state
A) Chlorine
B) Iodine
C) Bromine
D) Sulphate
Answer:
C) Bromine
Question 11.
Calcium oxide is
A) Basic oxide
B) Acidic oxide
C) Neutral oxide
D) Amphoteric oxide
Answer:
A) Basic oxide
Question 12.
_________ do not react with acids.
A) Metals
B) Non-metals
C) Metalloids
D) None of these
Answer:
B) Non-metals
Question 13.
_________ are good conductors of heat and electricity.
A) Metalloids
B) Non-metals
C) Metals
D) None of these
Answer:
C) Metals
Question 14.
Metals have shiny surface. This property is known as
A) Malleability
B) Ductility
C) Sonorous
D) Lustrous
Answer:
D) Lustrous
Question 15.
The property of materials which can be beaten into thin sheets is called _________
A) Malleability
B) Ductility
C) Sonorous
D) Lustrous
Answer:
A) Malleability
Question 16.
Metals react with acids and liberate _________ gas.
A) Oxygen
B) Hydrogen
C) Chlorine
D) Nitrogen
Answer:
B) Hydrogen
Question 17.
Oxides of non – metals are ususally _________ in nature.
A) acidic
B) basic
C) neutral
D) none
Answer:
A) acidic
Question 18.
Oxides of metals are usually _________
A) acidic
B) basic
C) neutral
D) amphoteric
Answer:
B) basic
Question 19.
The non-metal present in anions
A) chlorine
B) sulphur
C) oxygen
D) hydrogen
Answer:
B) sulphur
Question 20.
Most of metals exist in _________ state.
A) solid
B) liquid
C) gas
D) none of these
Answer:
A) solid
Question 21.
_________ properties better judge a material is metal or non-metal.
A) Physical
B) Chemical
C) Cannot say
D) None of these
Answer:
B) Chemical
Question 22.
Sodium is stores is _________
A) water
B) oil
C) kerosene
D) none of these
Answer:
C) kerosene
Question 23.
Gold and Platinum are called _________ metals.
A) inert
B) noble
C) rare
D) None of these
Answer:
B) noble
Question 24.
The essential non-metal for all living things is _________
A) Hydrogen
B) Oxygen
C) Chlorine
D) Sulphur
Answer:
B) Oxygen
Question 25.
Best conductor of electricity is _________
A) silver
B) gold
C) copper
D) aluminium
Answer:
A) silver
Question 26.
Which metal is mainly used in preparation of machinery
A) silver
B) gold
C) copper
D) iron
Answer:
D) iron
Question 27.
Electric wires are mainly prepared with _________ metals.
A) copper
B) zinc
C) sodium
D) potassium
Answer:
A) copper
Question 28.
Assertion (A) : Mercury is not a metal.
Reason (R) : Mercury does not show sonorous, malleability and ductility.
A) A and R are true
B) A and R are false
C) A is true, but R is false
D) A is true, but R is true
Answer:
D) A is true, but R is true
Question 29.
Raju : All metals are shines.
Rama : All shines are metals.
A) Raju is correct but Rama is wrong
B) Raju is wrong but Rama is correct
C) Both are correct
D) Both are wrong
Answer:
A) Raju is correct but Rama is wrong
Question 30.
Assertion (A) : Bases are prepared with oxides of metals.
Reason (R): Bases changes red litmus paper into blue.
A) A and R are trueR does not support A
B) A and R are true R supports A
C) A is true, but R is false
D) A is false, but R is true
Answer:
A) A and R are trueR does not support A
Question 31.
Find correct one.
A) Oxides of non-metals are usually acidic in nature
B) Oxides of metals are usually basic in nature
C) Both ‘A’ and ‘B’
D) Neither ‘A’ and ‘B’
Answer:
C) Both ‘A’ and ‘B’
Question 32.
Predict a metal, which is a metal but not has sonarity
A) Carbon
B) Mercury
C) Brass
D) Gold
Answer:
B) Mercury
Question 33.
There is a substance ‘X’. After burning, it is changed into powder. If we add water to the powder it acts as a base, then the ‘X’ may be
A) Mg (Magnesium)
B) C (Carbon)
C) O (Oxygen)
D) Gold
Answer:
A) Mg (Magnesium)
Question 34.
Guess the reason why does Ferrous (Iron) does not displace Zinc from ZnSO4 (Zinc sulphate solution)
A) Ferrous is more reactive metal than Zinc
B) Zinc is more reactive metal than Ferrous
C) Ferrous and Zinc are non-metals
D) Ferrous and Zinc are metals
Answer:
B) Zinc is more reactive metal than Ferrous
Question 35.
Some metals reacts with acids to evolve _________ gas.
A) Hydrogen
B) Oxygen
C) Carbondioxide
D) Nitrogen
Answer:
A) Hydrogen
Question 36.
_________ generally do not react with water.
A) Metals
B) Non-metals
C) Metalloids
D) None of these
Answer:
B) Non-metals
Question 37.
_________ metal get green coating when exposed to air.
A) Silver
B) Copper
C) Gold
D) Aluminium
Answer:
B) Copper
Question 38.
Iron is _________ reactive than copper.
A) less
B) more
C) equal
D) None of these
Answer:
B) more
Question 39.
The gas which produce pop sound
A) oxygen
B) hydrogen
C) chlorine
D) Nitrogen
Answer:
B) hydrogen
Question 40.
When zinc granules are added to copper sulphate _________ is deposited at the bottom.
A) copper
B) zinc
C) sulphur
D) oxygen
Answer:
A) copper
Question 41.
When exposed to air silver objects and jewellery become
A) white
B) green
C) blue
D) black
Answer:
D) black
Question 42.
The sample test for sonority is
A) Heating the metal
B) Dropping the metal on a concrete floor
C) Bending the metal
D) Dropping the metal in water.
Answer:
B) Dropping the metal on a concrete floor
Question 43.
What precautions do you take while burning sulphur ?
A) Do not inhale the flumes
B) Don’t stay against the wind direction
C) Both A and B
D) Neither A nor B
Answer:
C) Both A and B
Question 44.
If you burn sulphur in your lab, it gives _________
A) Glazing of light
B) It leaves fumes
C) Both A and B
D) Neither A nor B
Answer:
B) It leaves fumes
Question 45.
If you dip blue litmus paper in sulphur dioxide solution, it will change into
A) red colour
B) blue colour
C) yellow colour
D) white colour
Answer:
A) red colour
Question 46.
_________ is highly malleable.
A) Gold
B) Iron
C) Sodium
D) Mercury
Answer:
A) Gold
Question 47.
_________ mixture is used in currency coins
A) Aluminium and Copper
B) Iron
C) Gold
D) Silver
Answer:
A) Aluminium and Copper
Question 48.
Most ductile metal is _________
A) Copper
B) Silver
C) Gold
D) Aluminium
Answer:
C) Gold
Question 49.
Which non-metal is dissolved in tincture ?
A) Chlorine
B) Bromine
C) Iodine
D) Fluorine
Answer:
C) Iodine
Question 50.
Which of the following gives an acid?
A) Sulphur
B) Carbon
C) Magnesium
D) Both A and B
Answer:
D) Both A and B
Question 51.
This is appreciable, because majority of metals are obtained from it
A) Air
B) Water
C) Sea
D) Earth
Answer:
D) Earth
Question 52.
The non-metal used in fire works
A) chlorine
B) iodine
C) sulphur
D) oxygen
Answer:
C) sulphur
Question 53.
The non – metal used in matchsticks is
A) chlorine
B) sulphur
C) iodine
D) oxygen
Answer:
B) sulphur
Question 54.
_________ foil used in inner packing of food materials and toffees.
A) Sodium
B) Magnesium
C) Aluminium
D) Silicon
Answer:
C) Aluminium
Question 55.
Which non-metal is present in eggs ?
A) Sulphur
B) Nitrogen
C) Chlorine
D) Hydrogen
Answer:
A) Sulphur
Question 56.
Generally metals get rusted. Which of the following cases does iron get rusted?
A) In the presence of oxygen
B) In the presence of moist oxygen
C) In the presence of moist free oxygen
D) In the presence of moisture
Answer:
B) In the presence of moist oxygen
Question 57.
Silver foils are used to decorate sweets based on the following property
A) Malleability
B) Sonority
C) Appearance
D) Ductility
Answer:
A) Malleability
Question 58.
Most metals react with dilute acids to liberate hydrogen gas. Which metal among the following does not ?
A) Magnesium
B) Aluminium
C) Iron
D) Copper
Answer:
D) Copper
Question 59.
The non-metal which is in solid state at room temperature.
A) Carbon
B) Chlorine
C) Bromine
D) Iodine
Answer:
A) Carbon
Question 60.
The metal that is present in haemoglobin
A) Magnesium
B) Iron
C) Carbon
D) Zinc
Answer:
B) Iron
Question 61.
Materials having qualities of both metals and non-metals are
A) Alloys
B) Metalloids
C) Noble metals
D) None of these
Answer:
B) Metalloids
Question 62.
Which metal reacts readily with cold water ?
A) Gold
B) Silver
C) Magnesium
D) Calcium
Answer:
D) Calcium
Question 63.
Iron is galvanised by coating it with _________
A) Chromium
B) Sodium
C) Magnesium
D) Zinc
Answer:
D) Zinc
Question 64.
Boron is _________
A) metal
B) metalloid
C) non-metal
D) alkali
Answer:
B) metalloid
Question 65.
A non-metal used in making glass is _________
A) Carbon
B) Silica
C) Graphite
D) Sulphur
Answer:
B) Silica
Question 66.
Why don’t we use a metallic handle to an electric tester ?
A) Metals are good conductors of electricity
B) Metals are highly expensive
C) Metals are rarely occurs
D) Metals are bad conductor of electricity
Answer:
A) Metals are good conductors of electricity
Question 67.
When magnesium is burnt in Oxygen, the formed product dissolves in water which is tested with red litmus. Assume the final result in the above experiment.
A) Magnesium oxide is basic in nature
B) Magnesium oxide is neutral in nature
C) Magnesium is a non-metal
D) Magnesium oxide is acidic in nature
Answer:
A) Magnesium oxide is basic in nature
Question 68.
Which of the following is correct question arising in Laxmi’s mind, when she observed vessel on Gas stove with plastic covered handle ?
A) Why plastics are used to cover electric wires ?
B) Why plastics are used to manufacture water bottles ?
C) Why plastics are strong ?
D) Why plastics by used for metallic vessel Grips ?
Answer:
D) Why plastics by used for metallic vessel Grips ?
Question 69.
Assertion (A) : Iron can be drawn into wires and used for fencing.
Reason (R) : Iron has the property of ductility.
A) Both A and R are correct but R is not correct reason for A
B) A is correct and R is not correct
C) Both A and R are not correct
D) Both A and R are correct and R is correct reason for A
Answer:
D) Both A and R are correct and R is correct reason for A
Question 70.
You know metals conduct heat energy.
What are precautions to be taken while preparing dosa pan ?
A) Pan must be big in size
B) Pan must be small in size
C) Pans must be prepared with heat resistant material
D) Cover the handle of pan with heat resistant material
Answer:
D) Cover the handle of pan with heat resistant material
Question 71.
i) Copper does not displace Zinc from Zinc Sulphate
ii) Zinc can displace Copper from Copper Sulphate
What do you notice from the above two sentences ?
A) High reactive metals can displace less reactive metals from its compound.
B) High reactive metals cannot displace less reactive metals from its compound.
C) Displacement takes place when reactivity of both the metals is equal.
D) Less reactive metals can displace high reactive metals from its compound
Answer:
A) High reactive metals can displace less reactive metals from its compound.
Question 72.
Observe Set – A, Set – B and choose correct matching.
| Set – A | Set – B |
| a) Sulphur | i) packing covers |
| b) Carbon | ii) match boxes |
| c) Aluminium | iii) ornaments |
| d) Silver | iv) decolourising agent |
A) a – ii, b – iv, c – i, d – iii
B) a – iv, b – iii, c – ii, d – i
C) a – iii, b – ii, c – i, d – iv
D) a – i, b – ii, c – iii, d – iv
Answer:
A) a – ii, b – iv, c – i, d – iii
| Set – A | Set – B |
| a) Sulphur | ii) match boxes |
| b) Carbon | iv) decolourising agent |
| c) Aluminium | i) packing covers |
| d) Silver | ii) match boxes |
Question 73.
Non-metals react with Oxygen to give Oxides “X” while metals react with Oxygen to give Oxides “Y”. The chemical nature of “X” and “Y” is
A) X : acidic, Y : basic
B) X : basic, Y : acidic
C) X : acidic, Y : acidic
D) X: basic, Y : basic
Answer:
A) X : acidic, Y : basic
Question 74.
Metals are generally solid. Which of the following metals is in the liquid state at room temperature ?
A) Mercury
B) Silver
C) Aluminium
D) Sodium
Answer:
A) Mercury
Question 75.
Match the Group A with Group B.
| Group A (Substance) | Group B (Application) |
| a) Oxygen | i) For making crackers |
| b) Copper | ii) For disinfecting water |
| c) Sulphur | iii) All living beings inhale during breathing |
| d) Iron | iv) For making electric wires |
| e) Chlorine | v) For making rails |
A) a – iii, b – iv, c – i, d – v, e – ii
B) a – iv, b – iii, c – i, d – v, e – ii
C) a – iii, b – iv, c – v, d – i, e – ii
D) a – ii, b – iv, c – i, d – v, e – iii
Answer:
A) a – iii, b – iv, c – i, d – v, e – ii
| Group A (Substance) | Group B (Application) |
| a) Oxygen | iii) All living beings inhale during breathing |
| b) Copper | iv) For making electric wires |
| c) Sulphur | i) For making crackers |
| d) Iron | v) For making rails |
| e) Chlorine | ii) For disinfecting water |
Question 76.
Match the Group A with Group B.
| Group A Substance | Group B Application |
| a) Carbon | i) For making fertilisers |
| b) Magnesium | ii) For making purple coloured solution for wounds |
| c) Iodine | iii) For making chlorophyll |
| d) Zinc | iv) For galvanising iron |
| e) Nitrogen | v) As a fuel |
A) a – iii, b – v, c – ii, d – iv, e – i
B) a – v, b – iii, c – ii, d – iv, e – i
C) a – iii, b – v, c – iv, d – ii, e – i
D) a – v, b – iii, c – ii, d – i, e – iv
Answer:
B) a – v, b – iii, c – ii, d – iv, e – i
| Group A Substance | Group B Application |
| a) Carbon | v) As a fuel |
| b) Magnesium | iii) For making chlorophyll |
| c) Iodine | ii) For making purple coloured solution for wounds |
| d) Zinc | iv) For galvanising iron |
| e) Nitrogen | i) For making fertilisers |
Question 77.
Choose for correct matching.
| Group A | Group B |
| 1. Metallic oxides | a) does not react with air |
| 2. Non-metaflic oxides | b) eggs |
| 3. Iron | c) basic |
| 4. Gold | d) get rusted |
| 5. Sulphur | e) acidic |
A) 1 – c, 2 – e, 3 – d, 4 – a, 5 – b
B) 1 – a, 2 – b, 3 – c, 4 – d, 5 – e
C) 1 – b, 2 – c, 3 – d, 4 – e, 5 – a
D) 1 – c, 2 – d, 3 – e, 4 – b, 5 – a
Answer:
A) 1 – c, 2 – e, 3 – d, 4 – a, 5 – b
| Group A | Group B |
| 1. Metallic oxides | c) basic |
| 2. Non-metaflic oxides | e) acidic |
| 3. Iron | d) get rusted |
| 4. Gold | a) does not react with air |
| 5. Sulphur | b) eggs |
Question 78.
Choose for correct matching.
| Group A | Group B |
| 1. Gold | a) thermometers |
| 2. Iron | b) electric wires |
| 3. Aluminium | c) wrapping food |
| 4. Carbon | d) jewellery |
| 5. Copper | e) machinery |
| 6. Mercury | f) fuel |
A) 1 – d, 2 – c, 3 – c, 4 – f, 5 – b, 6 – a
B) 1 – d, 2 – e, 3 – c, 4 – f, 5 – b, 6 – a
C) 1 – a, 2 – b, 3 – c, 4 – d, 5 – e, 6 – f
D) 1 – b, 2 – c, 3 – d, 4 – e, 5 – f, 6 – a
Answer:
B) 1 – d, 2 – e, 3 – c, 4 – f, 5 – b, 6 – a
| Group A | Group B |
| 1. Gold | d) jewellery |
| 2. Iron | e) machinery |
| 3. Aluminium | c) wrapping food |
| 4. Carbon | f) fuel |
| 5. Copper | b) electric wires |
| 6. Mercury | a) thermometers |
Question 79.
Match the Group A with Group B.
| A | B |
| 1. Sulphur | a) Foil decorated on sweets |
| 2. Silver | b) Making of coins |
| 3. Copper | c) Making fire works |
A) 1 – b, 2 – c, 3 – a
B) 1 – a, 2 – c, 3 – b
C) 1 – c, 2 – a, 3 – b
D) 1 – c, 2 – b, 3 – a
Answer:
C) 1 – c, 2 – a, 3 – b
| A | B |
| 1. Sulphur | c) Making fire works |
| 2. Silver | a) Foil decorated on sweets |
| 3. Copper | b) Making of coins |
Question 80.
Match the Group A with Group B.
| Group A | Group B |
| i. Metal does not have malleability | a. Mercury |
| ii. Metal have malleability | b. Phosphorous |
| iii. Non-metal | c. Iron |
A) i – c, ii – b, iii – a
B) i – a, ii – b, iii – c
C) i – c, ii – a, iii – b
D) i – a, ii – c, iii – b
Answer:
D) i – a, ii – c, iii – b
| Group A | Group B |
| i. Metal does not have malleability | a. Mercury |
| ii. Metal have malleability | c. Iron |
| iii. Non-metal | b. Phosphorous |
Question 81.
When metals react with acids, a gas is released which burns with a pop sound. Which gas is this ?
A) Oxygen
B) Hydrogen
C) Methane
D) Carbon dioxide
Answer:
B) Hydrogen
Question 82.
A substance can be drawn into long wires used for electrical purposes. What property/properties does that substance show ?
A) only ductility
B) only conductance of electricity
C) both ductility and conductance of heat
D) both ductility and conductance of electricity
Answer:
A) only ductility
Question 83.
Some metals react with …………. to produce hydrogen gas.
A) water
B) sodium
C) sodium chloride
D) iron sulphide
Answer:
A) water
Question 84.
In the experiment shown below, a steel wire is tied to two chairs and kept tight. Two students sit, one on each chair. A wieght is attached to the long wire with the help of a string and a pointer is attached to the weight to show the reading.
im
What will happen to the pointer when the candles are lit and the steel wire gets heated up ?
A) It will move up.
B) It will move down.
C) It will remain at the same position.
D) It will first move up and then move down.
Answer:
B) It will move down.
Question 85.
In the table shown below, some properties of copper are given.
| Property | |
| p | Good conductor of electricity |
| Q | Reacts with oxygen to form cuprous oxide |
| R | Malleable |
| S | Ductile |
Which property / properties of copper makes it favourable for making electrical wires ?
A) only P
B) only P and Q
C) only P and R
D) only P and S
Answer:
D) only P and S
Fill in the blanks.
1. ………………… are good conductors of heat and electricity but non-metals are poor conductor
Answer:
Metals
2. On burning, metals react with oxygen to produce metal oxides which are ………………… in nature.
Answer:
Basic
3. ………………… react with oxygen to produce non-metallic oxides which are acidic in nature.
Answer:
Non-metal
4. Some metals react with ………………… to produce metal hydroxides and hydrogen gas.
Answer:
water
5. Generally, ………………… do not react with water.
Answer:
Non-metals
6. Metals react with acids and produce ……………… and ………………. gas.
Answer:
metal salts, hydrogen
7. Generally, ………………… do not react with acids.
Answer:
non-metals
8. ………………… reactive metals displace ………………. reactive metals from their compounds in aqueous solutions.
Answer:
More, less
9. The property of metals by which they can be beaten into thin sheets is called …………………
Answer:
malleability
10. The property of metal by which it can be drawn into wires is called …………………
Answer:
ductility
11. Since metals produce ringing sounds, they are said to be …………………
Answer:
sonorous
12. When ………………… vessel is exposed to moist air for long, it acquires a dull green coating.
Answer:
a Copper
13. The name of the product formed in the reaction of sulphur and oxygen is …………………
Answer:
sulphur dioxide gas
14. Phosphorus is a very reactive …………………
Answer:
non-metal
15. Sodium is a very feactive
Answer:
metal
16. Reactions of ………………… with bases are complex.
Answer:
non-metals
17. Non-metal used in the ……………….. coloured solution which is applied on wounds as an
antiseptic.
Answer:
purple
Match the following.
Question 1.
| Group – A | Group – B |
| P) Metal | i) copper |
| Q) Non-metal | ii) sulphur |
| iii) silicon |
Answer:
P – i, Q – ii
| Group – A | Group – B |
| P) Metal | i) copper |
| Q) Non-metal | ii) sulphur |
Question 2.
| Group – A | Group – B |
| P) Sheets | i) sonorous |
| Q) Wires | ii) malleability |
| iii) ductility |
Answer:
P – ii, Q – iii
| Group – A | Group – B |
| P) Sheets | ii) malleability |
| Q) Wires | iii) ductility |
Question 3.
| Group – A | Group – B |
| P) Conducting of | i) handles of tester |
| Q) Conducting of electricity | ii) handles of door |
| iii) handles of pan |
Answer:
P – iii, Q – i
| Group – A | Group – B |
| P) Conducting of | iii) handles of pan |
| Q) Conducting of electricity | i) handles of tester |
Question 4.
| Group – A | Group – B |
| P) Metal oxides | i) acids |
| Q) Non-metal oxides | ii) bases |
| iii) neutral |
Answer:
P – ii, Q – i
| Group – A | Group – B |
| P) Metal oxides | ii) bases |
| Q) Non-metal oxides | i) acids |
Question 5.
| Group – A | Group – B |
| P) Breathing | i) metalloid |
| Q) Blood | ii) non-metal |
| iii) metal |
Answer:
| Group – A | Group – B |
| P) Breathing | ii) non-metal |
| Q) Blood | iii) metal |