Metals and Non Metals Class 10 Multiple Choice questions
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Multiple Choice questions
Set A of 20 Questions
Question 1
Which of the following metals cannot be extracted using smelting?
(a) Fe
(b) Al
(c)Zn
(d) Pb Question 2
In general, the number of electrons in the outermost shell of a metal atom is
(a) 1
(b) 1 to 3
(c) 5 to 8
(d) 8 Question 3
Aluminum is used for making cooking utensils. Which of the following properties of aluminum are responsible for the same?
(i)Good thermal conductivity
(ii)Good electrical conductivity
(iii) Ductility
(iv) High melting point
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (i) and (iv) Question 4
Two Statement are made Statement A: Zinc is used in the galvanization of iron Statement B: Its coating on Iron articles increasing the life of it by protecting it from rusting
(a)Statement A is correct only
(b) Statement A is correct only
(c) Both Statement A and B are correct
(d) Both Statement A and B are incorrect Question 5
Hematite is an ore of
(a) iron
(b) aluminum
(c) copper
(d) tin Question 6
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
(a) Au
(b) Cu
(c) Na
(d) K Question 7
Copper sulphate solution can be easily kept in a container made of
(a)Lead
(b) Zinc
(c) Silver
(d) Aluminum Question 8
Blue gold is an alloy of
(a)Gold and aluminum
(b) Gold and indium
(c) Gold and silver
(d) Gold and copper Question 9
Which of the following is incorrect?
(a)Zinc Oxide is called as amphoteric oxide
(b) Silicon counts among metalloids
(c) Sodium is kept open in air
(d) Metals conduct electricity Question 10
Which metal can be displaced by copper from its salt solution?
(a)Silver
(b) Zinc
(c) Iron
(d) Silver Question 11
Which of the following oxide cannot be reduced with carbon to obtain the metal?
(a)MnO2
(b) Cr2O3
(c) Al2O3
(d)All the above Question 12
Which is correct order as per the reactivity of the metals
(a) Zn > Fe > Cu > Ag
(b) Fe > Zn > Cu > Ag
(c) Cu > Zn > Fe > Ag
(d) Zn > Cu > Fe > Ag Question 13
Although metals form basic oxides, which of the following metals form an amphoteric oxide?
(a) Al
(b) Ca
(c) Na
(d) Cu Question 14
Which of the following non-metal is good conductor of electricity?
(a) Graphite
(b) Phosphorus
(c) Hydrogen
(d) Bromine Question 15
Which among the following alloys contain mercury as one of its constituents?
(a) Stainless steel
(b) Alnico
(c) Solder
(d) Zinc amalgam Question 16
Two statement are made Statement A: The lustre of a metal is due to presence of free electrons Statement B: Metals conducts heat
(a) Statement A is correct only
(b) Statement B is correct only
(c) Statement A and B both are correct
(d) Statement A and B both are incorrect Question 17
Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam?
(a) FeO
(b) Fe2O3
(c) Fe3O4
(d) Fe2O3 and Fe3O Question 18
Which of the following is true?
(a) Color of basic copper carbonate is green
(b) Malachite is an ore of Copper
(c) Aluminum is more reactive than Copper
(d) All the above Question 19
The ability of metals to be drawn into thin wire is known as
(a) Ductility
(b) Malleability
(c) Sonority
(d) Conductivity Question 20
What happens when calcium is treated with water?
(i) It does not react with water
(ii) It reacts violently with water
(iii) It reacts less violently with water
(iv) Bubbles of hydrogen gas formed stick to the surface of calcium
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (ii)
(d) (iii) and (iv)
Question 1 The percentage of lead pencil is:
(a)Zero
(b)20
(c)80
(d)70
Question 2 Which of the following metals occur in their pure state?
(a)Copper
(b)Iron
(c)Zinc
(d)Gold
Question 3 Silicon is used in
(a)Solar energy devices
(b)Semiconductors
(c)Transistors
(d)All of these
Question 4 Which of the following is a noble metal?
(a)Copper
(b)Iron
(c)Gold
(d)Aluminum
Question 5 When a metal is added to dilute HCI solution, there is no evolution of gas. Metal is
(a)K
(b)Na
(c)Ag
(d)Zn
Question 6 Removal of impurities from ore is known as
(a)Crushing and grinding
(b)Concentration of ore
(c)Calcinations
(d)Roasting
Question 7 Concentrated sulphuric acid acts as:
(a)Oxidizing agent
(b)Dehydrating agent
(c)Both
(d)None of these
Question 8 Forth floatation method is used for the concentration of
(a)Oxide ores
(b)Sulphide ores
(c)Sulphate ores
(d)Halide ores
Question 9 Nature of SO2 is:
(a)Basic
(b)Acidic
(c)Amphoteric
(d)Neutral
Question 10 Heating of concentrated ore in absence of air for conversion into oxide ore is known as
(a)Roasting
(b)Calcinations
(c)Reduction
(d)None of these
Question 11 Which of the following metal will not displace hydrogen from steam, dilute acids and alkalies?
(a)Iron
(b)Zinc
(c)Mercury
(d)Calcium
Question 12 Which reducing agent is used in chemical reduction
(a)C
(b)CO
(c)AI
(d)None of these
Question 13 What is anode mud
(a)Fan of anode
(b)Metal of anode
(c)Impurities collected at anode in electrolysis during purification of metals
(d)All of these
Question 14 When a non- metal reacts with chlorine, it forms
(a)An ionic chloride
(b)A covalent chloride
(c)A tetrachloride
(d)A dichloride
Question 15 Which of the following methods are suitable for preventing an iron frying pan from rusting?
(a)Applying grease
(b)Applying paint
(c)Applying a coating of zinc
(d)All of the above
Question 16 Out of the following, which cannot be obtained by electrolysis of aqueous solution of the salt?
(a)Ag
(b)Mg
(c)Cu
(d)Cr
Question 17 Aluminum is used in thermite welding because
(a)Aluminum is a light metal
(b)Aluminum has more affinity for oxygen
(c)Aluminum is a strong oxidizing agent
(d)Aluminum is a reactive metal
Question 18 Which of the following process is used for the concentration of Bauxite (AI2O3. 2H2O)?
(a)Forth floatation
(b)Leaching
(c)Liquation
(d)Magnetic separation
Question 19 The best malleable metal is
(a)Aluminum
(b)Silver
(c)Gold
(d)Lead
Question 20 The process of extraction of metal from its ores, is known as
(a)Concentration
(b)Calcination
(c)Purification
(d)Metallurgy
Question 21 Which is used as catalyst in Haber’s process?
(a)Cr
(b)AI
(c)Ni
(d)Fe
Question 22 The process to heat the ore in the presence of excess supply of air below its melting point is called
(a)Roasting
(b)Calcination
(c)Smelting
(d)Liquation
Question 23 Stainless steel is usually made by alloying iron with:
(a)Fe and Cu
(b)Cu and Cr
(c)Cu ad Ni
(d)Cr and Ni
Question 24 Which of the following metals constitutes the alloys magnalium
(a)Al, Cu
(b)Al, Fe
(c)Al, Mg
(d)Al, Mn
Question 25 One of the constituents of amalgam is
(a)Aluminum
(b)Copper
(c)Iron
(d)Mercury
Question 26 German silver is an alloy of:
(a)Copper
(b)Magnesium
(c)Lead
(d)Iron
Question 27 The white phosphorus is stored
(a)In air
(b)Under water
(c)Under kerosene
(d)Under CS2
Question 28 Bronze is an alloy of copper and:
(a)Tin
(b)Aluminum
(c)Zinc
(d)Lead
Question 29 The chief ore of aluminum is
(a)Bauxite
(b)Cryolite
(c)Alunite
(d)Feldspar
Question 30 Formula of magnetite is
(a)Fe2O3
(b)FeS2
(c)FeCO3
(d)Fe3O4
Answer
(1) a
(2) d
(3) d
(4) c
(5) c
(6) b
(7) c
(8) b
(9) b
(10) b
(11) c
(12) d
(13) c
(14) b
(15) c
(16) b
(17) b
(18) b
(19) c
(20) d
(21) d
(22) a
(23) d
(24) c
(25) d
(26) a
(27) b
(28) a
(29) a
(30) d
Summary
This Metals and Non Metals Class 10 MCQ with answers is prepared keeping in mind the latest syllabus of CBSE . This has been designed in a way to improve the academic performance of the students. If you find mistakes , please do provide the feedback on the mail.
