In this article, you will find Metals and Non-Metals Class 10 Extra Questions, which will be very useful and helpful for you. You should prepare notes yourself and practice them well. To get good marks in the examination. you should also go through the Activity given in the chapter.
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| Metals and Non-Metals Class 10 Extra Questions |
Metals and Non-Metals Class 10 Extra Questions
Metals and
Non-Metals Class 10 Extra Questions consists of properties
of metals and non-metals. Metallurgy methods, activity series, corrosion and
prevention. For detail, you can check CBSE Syllabus Class 10 Science.
If you find any difficulty in finding answers to Metals and Non-Metals Class 10 Extra Questions, then go through NCERT
solutions of class 10 science or you can comment in the comment section,
we will be very pleased to help you.
Metals and Non-Metals Class 10 Extra Questions
CHAPTER- 3 METALS AND NON- METALS
1. Write down the properties of metals.
2. Name the metals which are-
i. Ductile
ii. Best conductors of heat
iii. Poor conductors of heat
iv. Kept in kerosene
v. Liquid
vi. With low melting points( melt when kept on the palm)
vii. Soft
viii. Most vigorous
ix. Most malleable
x.The best conductor of electricity
3. Name non – metal which are-
i. Liquid
ii. Lustrous
4.
Name any one element which is found in
different forms?
5.
Name an allotrope of carbon that is hardest?
6.
Name an allotrope of carbon that is a good
conductor of electricity?
7.
Name a metal that burns in the air with dazzling
white flame?
8.
What do you mean by amphoteric oxides?
9.
Name some metals which form amphoteric oxides?
10. Name some metals which are covered with a thin
layer of oxide?
11. Name some metals which do not react with
oxygen even at high temperatures?
12. What do you mean by anodizing?
13. Name the metal which does not react with cold
water but reacts with hot water?
14. Why calcium float on the surface of the water?
15. Why magnesium float on the surface of the water?
16. Name the metals which do not react with cold
or hot water?
17. Name some metals which react with steam?
18. What is aqua regia?
Or
How aqua regia is prepared?
19. Why does hydrogen gas not evolve when metal
reacts with nitric acid?
20. Name one metal that does not react with dil. HCl?
21. Why is sodium kept immersed in kerosene oil?
22. Show the formation of Na2O, MgO by
the transfer of electrons?[ do other examples also]
23. Write the chemical reaction of metal with the following-
i. Oxygen ( burn-in air)
ii. Water
iii. Acid
iv. Non-metals
24. Write equations for the reactions of
i. Iron with steam
ii. Calcium and potassium with water
25. What are ionic compounds? Describe the properties
of ionic compounds.
26. Why do ionic compounds have high melting
points?
27. What happens when zinc is added to the
solution of iron (II) sulphate? Give the reaction for it?
28. Name
the metal which is found in a free state?
29. Name the element found in abundance in
the earth's crust?
30. Define the following-
i. Ore
ii. Gangue
iii. Metallurgy
31. Name an ore of mercury?
32. What is roasting and calcination?
Or
Write the difference between roasting and calcination.
33. Name some metals which are obtained by
electrolytic reduction?
34. What is galvanization?
35. What do you mean by alloying?
36. What are alloys?
37. What is amalgam?
38. What is
corrosion? How is it prevented?
39. Why 24-carat gold is not suitable for making
jewellery?
40. Write the name of two alloys of copper?
41. How soft iron is made hard and strong?
42. Give reasons why-
i. Platinum, gold and silver are used to make jewellery.
ii. Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.
iii. Copper is used to make hot water tanks and not steel.
43. Explain the steps for metallurgy of the following –
i. Metals of high reactivity
ii. Metals of moderate ( medium) reactivity
iii. Metals of less ( low) reactivity
44. Describe the condition necessary for
corrosion. Give an activity for it with a suitable diagram.
45. What is metallic lustre?
46. What is malleability?
47. What is ductility?
48. Why can metals be given different shapes?
49. Why are metals used for making vessels or
utensils?
50. Write the full form PVC?
51. Draw the diagram showing that metals are good
conductors of heat.
52. Why are electric wires coated with PVC or
rubber-like materials?
53. Why are school bells made of metals?
54. What do you mean by sonorous?
55. What is allotropy?
56. Name some alkali metals that are cut with a knife.
57. Write the reaction of aluminium with the following –
i. Hydrochloric acid
ii. Sodium hydroxide
58. Name some metal oxide that produces alkali dissolving in water. Write the reaction also.
59. Name the metal which does not burn but is coated
with a black layer of oxide.
60. Write the process of anodizing?
61. Name the metals which react with cold water.
Write the reaction also.
62. Name some metals which do not react with
water.
63. Name the metals which react with dil. nitric
acid to produce hydrogen gas.
64. What is the Latin meaning for ‘aqua regia’?
65. Name the highly corrosive fuming substance
which can dissolve gold and platinum.
66. What is reactivity series? Give its one
application.[ Annual board exam-2012]
67. What is an ore? Describe the electrolysis method
of refining copper metal with a labelled diagram. [ Annual board exam-2012]
68. Write a short note on gangue and anode mud. -[
Annual board exam-2013]
69. Identify A, Y and Z in the following reactions--[ Annual board exam-2013]
moisture
i. Cu + CO2 -----→ green compound X
air
ii. Ag + Y ---→ Black compound (Ag 2)
heat
iii.FeSO4 ----→ Fe2O3 + SO3 + Z
70. Match the following-
A B
i. Liquid metal corrosive fuming liquid
ii. Allotrope of an alloy of Cu & Zn
carbon
iii. Soft metal graphite
iv. Aqua Regia mercury
v. Brass Mg/Na/Ca
vi. Nitric acid gold
vii. most ductile strong acid
viii. Bromine to join railway
tracks
ix. Thermite reaction sodium
x. Electrolysis liquid non-metal
71. Why is it necessary to convert sulphide or
carbonate ore to oxide ores?
72. Name some metals that do not react with water?
73. Metals are good conductors of heat, explain
with activity and draw the diagram also.
74. Difference between metals and non-metals.
75. Why do ionic compounds have high melting
points?
76. Why are ionic compounds hard?
77. Name the metal that is found in Free State in
nature.
78. Name one ore of mercury. Give the process of obtaining
mercury from its ore. Give the necessary reactions involved in it.
79. How can you obtain Zn from its sulphide ore?
Write the reaction also.
80. How can you obtain Zn from its carbonate ore?
Write the reaction also.
81. What is a thermite reaction? Give its
application also.
82. Name the reaction used to join railway tracks.
Write the reaction also.
83. Write the process of obtaining Al, Na, Ca, Mg
from oxide ores.
84. What is anode mud?
85. Name the method used to convert sulphide ore
to oxide.
86. Name the method used to convert carbonate ore
to oxide ore.
87. Write the difference between roasting and
calcination.
88. Write the balanced chemical reaction of copper
with moist carbon dioxide.
89. Write the balanced chemical reaction of silver
with Sulphur.
90. Write the balanced chemical reaction of iron
with moist air.
91. Give the chemical name of green coating on copper.
92. Give the chemical name of black coating on silver.
93. Give the chemical name of brown flaky substance on
iron.
94. What is rust?
95. Name any substance used as a drying agent.
96. Write down chemical composition for following-
i. Stainless steel
ii. Brass
iii. Bronze
iv. Solder
97. What type of oxides are formed when non-metal
combine with oxygen?
98. Compare metals and non-metals on the basis of the following-
i. Physical state
ii. Malleability
iii. Ductility
iv. Conduction of heat
v. Conduction of electricity
99. Name the different types of ores.
100. What is metallurgy? What are the main steps
involved in it, write their names only?
101. Aluminium with compound ‘X’ is used to join railway tracks.
i. Identify compound X
ii. Name the process
iii. Write the chemical equation for the reaction.
102. Which
metal does not corrode?
103. In which form moderately reactive metals are
found in the earth’s crust?
104. Why do elements show reactivity?
105. What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction also.
106. Why do ionic compounds not conduct electricity
in solid state?
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