metals and nonmetals mcqs

1. CH3 Metals and Non metals
QUIZ
MADE BY : ANAGHA MENON
KRISHA PATEL

2. 1. The non-metal which is liquid at room
temperature is:
a) Mercury
b) Bromine
c) Carbon
d) Helium
Answer
(b)Bromine

3. 2. The number of protons in an atom of an
element A is 19 then, the number of electron
in its ion A+ is:
a) 18
b) 19
c) 20
d) 21
Answer
(a)18

4. 3. Bauxite is an ore of
a) Iron
b) Aluminium
c) Mercury
d) Copper
 Answer
(b)Aluminium

5. 4. The metal which is liquid at room
temperature is
a) Bromine
b) Mercury
c) Iodine
d) Potassium
 Answer
(b)Mercury

6. 5. The sulphide ores are converted into oxides by
heating strongly in the presence of excess air. This
process is known as
a) Roasting
b) Smelting
c) Calcination
d) Refining
 Answer
(a) Roasting

7. 6. In electrolytic refining, the cathode is
made up of
a) Pure metal
b) Impure metal
c) Alloy
d) Metallic salt
 Answer
(a)Pure metal

8. 7. In the given reaction, Al2O3 +
NaOH → ……X…… + H2O
What is element X?
a) NaAlO2
b) Na3Al
c) Na2O3
d) NaAl2O3
 Answer
(a)NaAlO2

9. 8. Which of the following represent the
correct order of decreasing reactivity?
a) Mg > Al > Zn > Fe
b) Mg > Zn > Al > Fe
c) Al > Zn > Fe > Mg
d) Mg > Fe > Zn > Al
 Answer
(a)Mg > Al > Zn > Fe

10. 9. An element reacts with oxygen to give a
compound with a high melting point. This
compound is also soluble in water. The element is
likely to be
(a) Ca
(b) C
(c) Si
(d) Fe
 Answer
(a)Ca

11. 10. Which of the following pairs will give
displacement reactions?
(a) NaCl solution and copper metal
(b) MgCl2 solution and aluminium metal
(c) FeSO4 solution and silver metal
(d) AgNO3 solution and copper metal
 Answer
(d) AgNO3 solution and copper metal

12. 11. Which among the following is the
most abundant metal found in the
earth’s crust?
(a) Magnesium
(b) Aluminium
(c) Oxygen
(d) Iron
 Answer
(b) Aluminium

13. 12. Which of the following pairs of reactants
will go undergo a displacement reaction?
(a) CuSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Fe
(d) Ca(SO4)2 + Fe
 Answer
(a) CuSO4 + Fe

14. 13. Galvanisation is a method of
protecting steel and iron from rusting by
coating them with a thin layer of
(a) Copper
(b) Aluminum
(c) Zinc
(d) Bauxite
 Answer
(c) Zinc

15. 14. Which of the following alloys contains a
non-metal as one of its constituents?
(a) Steel
(b) Brass
(c) Amalgam
(d) Bronze
 Answer
(a)Steel

16. 15. An element X is soft and can be cut with the help
of a knife. It is very reactive to air and cannot be kept
open in the air. It reacts vigorously with water. Identify
the element from the following:
(a) Mg
(b) Na
(c) P
(d) Ca
 Answer
(b)Na

17. 16. The ability of metals to be drawn
into thin wires is known as
(a) ductility
(b) malleability
(c) sonority
(d) conductivity
Answer
(a) ductility

18. 17.Aluminium is used for making cooking utensils.
Which of the following properties of aluminium 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)
 Answer
(d) (i) and (iv)

19. 18.Due to its semiconductor properties the
non-metal used in computer, T.V. etc. is
(a) Carbon
(b) Silicon
(c) Bromine
(d) Fluorine
 Answer
(b) Silicon

20. 19.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)
 Answer
(d) (iii) and (iv)

21. 20.Generally metals react with acids to give salt
and hydrogen gas. Which of the following acids
does not give hydrogen gas on reacting with
metals (except Mn and Mg)?
(a) H2SO4
(b) HCl
(c) HNO3
(d) All of these
 Answer
(c) HNO3

22. 21.Which of the following metals are obtained by electrolysis
of their chlorides in molten state?
(i) Na
(ii) Ca
(iii) Fe
(iv) Cu
(a) (i) and (iv)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (i) and (ii)
 Answer
(d) (i) and (ii)

23. 22.An alloy reacted with dilute hydrochloric acid to
produce a gas which ‘pops’ a lighted splint. The
residue reacted with dilute nitric acid to form a
blue solution. Which one of the following pairs of
metals is present in the alloy?
(a) Copper and lead
(b) Lead and magnesium
(c) Copper and magnesium
(d) Lead and zinc
 Answer
(c) Copper and magnesium

24. 23. Which of the following metals exist in their native state
in nature?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)
 Answer
(c) (ii) and (iv)

25. 24. Metals are refined by using different methods. Which of the
following metals are refined by electrolytic refining?
(i) Au
(ii) Cu
(iii) Na
(iv) K
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (iii)and (iv)
 Answer
(a) (i) and (ii)

26. 25.Metal M occurs in the Earth’s crust as its oxide
M2O3. An alloy of this metal is used in making
aircrafts. The ore of the metal M is
(a) magnetite
(b) haematite
(c) bauxite
(d) pyrolusite
 Answer
(c) bauxite

27. ANSWER
(C)DULLNESS
26. Which of the given properties is generally
not shown by metals?
A. Electrical conduction
B. Sonorous in nature
C. Dullness
D. Ductility

28. ANSWER
(D)Fe
27. Which one of the given metals does not
react with cold as well as hot water?
A. Na
B. Ca
C. Mg
D. Fe

29. ANSWER
(C) CONC.HCL : DIL. HNO₃ = 3 : 1
28. The composition of aqua-regia is
A. Dil.HCl : Conc. HNO₃ = 3 : 1
B. Conc.HCl : Dil. HNO₃ = 3 : 1
C. Conc.HCl : Conc. HNO₃ = 3 : 1
D. Dil.HCl : Dil. HNO₃ = 3 : 1

30. ANSWER:
(D) NITROGEN
29. A non-metal used to preserve food material
is:
a) Carbon
b) Phosphorus
c) Sulphur
d) Nitrogen

31. ANSWER:
OPTION (D)
30. The metals that float when treated with water
are:
a) Manganese and Sodium
b) Sodium and Calcium
c) Magnesium and Sodium
d) Magnesium and Calcium

32.  Answer:
Option (b)
31.When hydrochloric acid is added to barium
hydroxide, a white-coloured compound is formed.
Which option gives the complete chemical
reaction?
a) HCl + Ba(OH)2 → BaCl2 + 2HOH
b) 2HCl + Ba(OH)2 → BaCl2 + 2HOH
c) 2HCl + Ba(OH)2 → BaH2 + 2HCl + O2
d) HCl + 2Ba(OH) → 2BaCl2 + 2HOH + O2

33. 32.WHICH OF THE FOLLOWING CAN
UNDERGO A CHEMICAL REACTION?
A) MGSO4 + FE
B) ZNSO4 + FE
C) MGSO4 + PB
D) CUSO4 + FE
ANSWER:
OPTION (D)

34. 33. The poorest conductor of heat
among metals is
(a) Lead
(b) Mercury
(c) Calcium
(d) Sodium
 Answer:
(a)Lead

35. 34.Which of the following pairs will give dis-
placement reactions?
(a) FeSO4 solution and Copper metal
(b) AgNO3 solution and Copper metal
(c) CuSO4 solution and Silver metal
(d) NaCl solution and Copper metal
 Answer:
(b) AgNO3 solution and Copper metal

36. 35. Which of the following non-metal is
lustrous?
(a) Sulphur
(b) Oxygen
(c) Nitrogen
(d) Iodine
 Answer:
(d)Iodine

37. 36. Reaction between X and Y forms compound Z.
X loses electron and Y gains electron. Which of the
following properties is not shown by Z?
(a) Has high melting point
(b) Has low melting point
(c) Conducts electricity in molten state
(d) Occurs as solid
Answer: (c)
Conducts electricity in molten state

38. 37. An element reacts with oxygen to give a
compound with a high melting point. This
compound is also soluble in water. The element is
likely to be
(a) Ca
(b) C
(c) Si
(d) Fe
 Answer: (a) Ca

39. 38. Which among the following is the most
abundant metal found in the earth’s crust?
(a) Magnesium
(b) Aluminium
(c) Oxygen
(d) Iron
 Answer:
(b) Aluminium

40. 39. Which of the following alloys contains a
non-metal as one of its constituents?
(a) Steel
(b) Brass
(c) Amalgam
(d) Bronze
 Answer: (a) Steel

41. 40. The poorest conductor of heat among metals is
(a) Lead
(b) Mercury
(c) Calcium
(d) Sodium
 Answer:
(a)Lead

42. 41. Which property of metals is used for
making bells and strings of musical
instruments like Sitar and Violin?
(a) Sonorousness
(b) Malleability
(c) Ductility
(d) Conductivity
 Answer:
(a)Sonorousness

43. 42. Example of an amphoteric oxide is:
(a) Na2O
(b) K2O
(C) Al2O3
(d) MgO
Answer:
(c) Al2O3

44. 43.Which of the following oxides of iron
would be obtained on prolonged reaction of
iron with steam?
a) FeO
b) Fe2O3
c) Fe3O4
d) Fe2O3 and Fe3O4
 Answer:
(c) Fe3O4

45. 44.The chemical reaction between a piece of copper and nitric acid
is given by the chemical equations,
Cu + HNO3 → Cu(NO3)2 + H2
H2 + HNO3 → H2O + NO2
What can be inferred from the chemical equation?
a) Copper causes the oxidation of HNO3 to form NO2.
b) Hydrogen gas gets oxidized by HNO3 to form water.
c) Gas reacts with oxygen in the air to form water.
d) Nitrate reacts with hydrogen to form NO2 and H2O.
 Answer:
(b) Hydrogen gas gets oxidized by HNO3 to form water.

46. 45.Which one of the following figures correctly describes
the process of electrolytic refining?
 Answer:
(c)

47. 46.An element A is soft and can be cut with a knife.
This is very reactive to air and cannot be kept in
open. It reacts vigorously with water. Identify the
element from the following:
(a) Mg
(b) Na
(c) P
(d) Ca
 Answer:
(b) Na

48. 47.Alloys are homogeneous mixtures of a metal
with a metal or non-metal. Which among the
following alloys contain non-metal as one of its
constituents?
(a) Brass
(b) Bronze
(c) Amalgam
(d) Steel
 Answer:
(d) Steel

49. 48.The electronic configurations of three elements
X, Y and Z are X – 2, 8; Y – 2, 8, 7 and Z – 2, 8, 2.
Which of the following is correct?
(a) X is a metal.
(b) Y is a metal.
(c) Z is a non-metal.
(d) Y is a non-metal and Z is a metal.
 Answer:
(d) Y is a non-metal and Z is a metal

50. 49.Which of the following can undergo
a chemical reaction?
(a) MgSO4 + Fe
(b) ZnSO2 + Fe
(c) MgSO2 + Pb
(d) CuSO2 + Fe
 Answer:
(d) CuSO2 + Fe

51. 50.The atomic numbers of four elements A, B, C
and D are 6, 8, 10 and 12 respectively. The two
elements which can react to form ionic bonds (or
ionic compound) are:
(a) A and D
(b) B and C
(c) A and C
(d) B and D
 Answer:
(d) B and D

52. 51. The process in which the
concentrated ore is heated below its
melting point in the absence or limited
supply of air is called …………….
Answer:
Calcination

53. 52. Metal have ……………. melting and
boiling points.
 Answer:
high

54. 53. ……………. displaces copper from a
solution of copper (II) sulphate.
 Answer:
Zinc

55. 54. Removal of impurities from a metal
by chemical method is called …………….
Answer:
leaching

56. 55.Oxides of non-metals when
dissolved in water generally give
……………. solutions.
Answer:
acidic