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Question 55: Give the reaction involved during extraction of z
Science Exemplar
Science Exemplar

Class 10

NCERT Exemplar

Publisher:
NCERT
Subject:
Science
1

Chapter 1: Chemical Reactions and Equations

44 questions

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2

Chapter 2: Acids, Bases and Salts

44 questions

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3

Chapter 3: Metals and Non-metals

63 questions

Q1
Question 54: An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
Q2
Question 55: Give the reaction involved during extraction of zinc from its ore by
(a) roasting of zinc ore
(b) calcination of zinc ore
Q3
Question 56: A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.
View all question
4

Chapter 4: Carbon and its Compound

30 questions

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5

Chapter 5: Periodic Classification of Elements

46 questions

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6

Chapter 6: Life Processes

75 questions

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7

Chapter 7: Control and Coordination

41 questions

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8

Chapter 8: How do Organism Reproduce?

52 questions

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9

Chapter 9: Heredity and Evolution

45 questions

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10

Chapter 10: Light -Reflection and Refraction

22 questions

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11

Chapter 11: The Human Eye and Colourful World

20 questions

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12

Chapter 12: Electricity

20 questions

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13

Chapter 13: Magnetic Effects of Electric Current

13 questions

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14

Chapter 14: Sources of Energy

28 questions

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15

Chapter 15: Our Environment

36 questions

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16

Chapter 16: Sustainable Management of Natural Resources

36 questions

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Question

Question 55: Give the reaction involved during extraction of zinc from its ore by
(a) roasting of zinc ore
(b) calcination of zinc ore

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Updated on: Jan 29, 2023

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Science Exemplar (NCERT Exemplar)

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Question 55: Give the reaction involved during extraction of zinc from its ore by
(a) roasting of zinc ore
(b) calcination of zinc ore
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Q1
Question 54: An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
Q2
Question 55: Give the reaction involved during extraction of zinc from its ore by
(a) roasting of zinc ore
(b) calcination of zinc ore
Q3
Question 56: A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.
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Question Text
Question 55: Give the reaction involved during extraction of zinc from its ore by
(a) roasting of zinc ore
(b) calcination of zinc ore
Updated OnJan 29, 2023
TopicMetals and Non-metals
SubjectScience
ClassClass 10
Answer TypeText solution:1 Video solution: 1
Upvotes170
Avg. Video Duration10 min