Students can practice the NCERT MCQ Questions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals with Answers Pdf free download is available here. Revise all the concepts easily by taking help from the MCQ Questions for Class 8 Science with Answers are prepared based on the latest exam pattern. Students can refer to these Materials: Metals and Non-Metals Class 8 MCQs Questions with Answers and assess their preparation level.
Materials: Metals and Non-Metals Class 8 MCQs Questions with Answers
I. Choose the correct option.
Question 1.
Metals are
(a) shiny
(b) hard
(c) sonorous
(d) all of these
Answer
Answer: (d) all of these
Question 2.
Non-metals are
(a) non-ductile
(b) non-sonorous
(c) non-malleable
(d) all of these
Answer
Answer: (d) all of these
Question 3.
Which of the following is a non-metal?
(a) Aluminium
(b) Oxygen
(c) Iron
(d) Silver
Answer
Answer: (b) Oxygen
Question 4.
Metalloids possess the properties of
(a) metals
(b) non-metals
(c) both metals and non-metals
(d) none of these
Answer
Answer: (c) both metals and non-metals
Question 5.
The most reactive metal is
(a) copper
(b) zinc
(c) potassium
(d) gold
Answer
Answer: (c) potassium
Question 6.
Non-metals are
(a) generally gases
(b) generally liquids
(c) generally solids
(d) generally solid and gases
Answer
Answer: (d) generally solid and gases
Question 7.
Which of the following metal is stored in kerosene?
(a) Sodium
(b) Magnesium
(c) Phosphorus
(d) Zinc
Answer
Answer: (a) Sodium
Question 8.
Metal oxides are
(a) neutral
(b) basic
(c) acidic
(d) all of these
Answer
Answer: (b) basic
Question 9.
The non-metal which is liquid at room temperature is
(a) bromine
(b) chlorine
(c) iodine
(d) carbon
Answer
Answer: (a) bromine
Question 10.
Which substance is used for making pencil lead?
(a) Sulphur
(b) Silicon
(c) Graphite
(d) Aluminium
Answer
Answer: (c) Graphite
Question 11.
Which non-metal is used in making glass?
(a) Graphite
(b) Sulphur
(c) Silica
(d) None of these
Answer
Answer: (c) Silica
Question 12.
Which metal is used in wrapping materials?
(a) Aluminium
(b) Zinc
(c) Copper
(d) None of these
Answer
Answer: (a) Aluminium
Question 13.
The metal found in liquid state is
(a) mercury
(b) silver
(c) calcium
(d) sodium
Answer
Answer: (a) mercury
Question 14.
The most ductile metal is
(a) silver
(b) gold
(c) copper
(d) aluminium
Answer
Answer: (b) gold
Question 15.
Non-rpetals
(a) react with water
(b) do not react with water
(c) both (a) and (b)
(d) none of these
Answer
Answer: (b) do not react with water
Question 16.
Which of the following metals are soft enough to be even cut with a knife?
(a) Sodium
(b) Potassium
(c) Lithium
(d) All of these
Answer
Answer: (d) All of these
Question 17.
Which is the hardest substance?
(a) Gold
(b) Diamond
(c) Aluminium
(d) None of these
Answer
Answer: (b) Diamond
Question 18.
Metals react with acids to produce respective salts with evolution of
(a) hydrogen gas
(b) oxygen gas
(c) CO2 gas
(d) none of these
Answer
Answer: (a) hydrogen gas
Question 19.
In displacement reactions
(a) a more reactive metal displaces a less reactive metal.
(b) a less reactive metal displaces a more reactive metal.
(c) both (a) and (b)
(d) none of these
Answer
Answer: (a) a more reactive metal displaces a less reactive metal.
Question 20.
Which of the following non-metals are used in fertilisers?
(a) Nitrogen
(b) Phosphorus
(c) Both (a) and (b)
(d) None of these
Answer
Answer: (c) Both (a) and (b)
II. Fill in the Blanks
Question 1.
Metals are ______of heat and
Answer
Answer: good conductors, electricity
Question 2.
Iodine is a ______having lustre.
Answer
Answer: non-metal
Question 3.
______ and ______ are kept in kerosene to avoid explosion.
Answer
Answer: Sodium, potassium
Question 4.
Non-metal oxides are ______ in nature.
Answer
Answer: acidic
Question 5.
_______ is more reactive than copper.
Answer
Answer: Zinc
Question 6.
Sulphur forms _______ oxides.
Answer
Answer: acidic
Question 7.
Magnesium forms ______ oxides.
Answer
Answer: basic
Question 8.
_______ is less reactive than iron.
Answer
Answer: Copper
Question 9.
All metals are hard except _______ and ______
Answer
Answer: sodium, potassium
Question 10.
Metals have generally ______melting and boiling points.
Answer
Answer: high
Question 11.
_______ are used in medicines as antiseptic.
Answer
Answer: Non-metals
Question 12.
The only liquid metal is ______
Answer
Answer: mercury
Question 13.
______ is non-metal used in breathing by all living beings.
Answer
Answer: Oxygen
Question 14.
The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is ______
Answer
Answer: aluminium
Question 15.
_______ reacts with cold water vigorously.
Answer
Answer: Sodium
III. True or False
Question 1.
Metals are non-sonorous.
Answer
Answer: False
Question 2.
Metals react with water.
Answer
Answer: True
Question 3.
Non-metals cannot be converted into wires.
Answer
Answer: True
Question 4.
The only liquid metal is bromine.
Answer
Answer: False
Question 5.
Sodium and potassium do not react vigorously with water and oxygen.
Answer
Answer: False
Question 6.
Basic solution turns red litmus into blue.
Answer
Answer: True
Question 7.
Graphite is a good conductor of electricity.
Answer
Answer: True
Question 8.
Generally, metallic oxides are basic and non-metallic oxides are acidic in nature.
Answer
Answer: True
Question 9.
Chlorine is not a non-metal.
Answer
Answer: False
Question 10.
Phosphorus is kept in water.
Answer
Answer: True
Question 11.
All metals exist in solid form at room temperature.
Answer
Answer: False
Question 12.
Rust formed on iron object is acidic in nature.
Answer
Answer: False
Question 13.
Aluminium is more reactive than copper.
Answer
Answer: True
Question 14.
Non-metals react with water to form a gas which burns with a ‘pop’ sound.
Answer
Answer: False
Question 15.
All the gases are non-metals.
Answer
Answer: True
IV. Natch the following
| Column I | Column II |
| 1. Malleable | (a) Can be transformed into wire |
| 2. Ductile | (b) For making crackers |
| 3. Oxygen | (c) Give sheets on hammering |
| 4. Copper | (d) For disinfecting water |
| 5. Sulphur | (e) All living beings inhale during breathing |
| 6. Diamond | (f) For making electric wires |
| 7. Sonority | (g) For making rails |
| 8. Iron | (h) Hardest non-metal |
| 9. Chlorine | (i) Ringing of bells |
| 10. Platinum | (j) Used in making ornaments |
Answer
Answer:
| Column I | Column II |
| 1. Malleable | (c) Give sheets on hammering |
| 2. Ductile | (a) Can be transformed into wire |
| 3. Oxygen | (e) All living beings inhale during breathing |
| 4. Copper | (f) For making electric wires |
| 5. Sulphur | (b) For making crackers |
| 6. Diamond | (h) Hardest non-metal |
| 7. Sonority | (i) Ringing of bells |
| 8. Iron | (g) For making rails |
| 9. Chlorine | (d) For disinfecting water |
| 10. Platinum | (j) Used in making ornaments |
We think the shed NCERT MCQ Questions for Class 8 Science Chapter 4 Materials: Metals and Non-Metals with Answers Pdf free download will benefit you to the fullest. If you need any kind of assistance while practicing CBSE Class 8 Science Materials: Metals and Non-Metals MCQs Multiple Choice Questions with Answers, do leave us your queries and we will look into it and add it accordingly.