Question Paper
Class / Subject: Class 10 (ICSE) · Chemistry
Chapter: Chapter 7 — Chapter 7: Metallurgy
Time Allowed: 32 minutes
Max Marks: 16
1. What is an ore? [1]
(A) A mineral from which metal can be economically extracted
(B) Any rock
(C) A pure metal always
(D) A type of gas
2. What is gangue? [1]
(A) Unwanted impurities in ore
(B) The metal itself
(C) A type of acid
(D) A type of furnace
3. How are reactive metals like aluminium extracted? [1]
(A) Electrolysis
(B) Reduction with carbon
(C) Heating alone
(D) Filtration
4. How are moderately reactive metals like iron extracted? [1]
(A) Reduction with carbon
(B) Electrolysis only
(C) Filtration
(D) Distillation
5. What furnace is used for extracting iron? [1]
(A) Blast furnace
(B) Electric furnace only
(C) Solar furnace
(D) No furnace needed
6. What is iron ore commonly called? [1]
(A) Haematite
(B) Bauxite
(C) Galena
(D) Cinnabar
7. What is refining used for? [1]
(A) Removing remaining impurities from extracted metal
(B) Adding more impurities
(C) Making the ore heavier
(D) Nothing useful
8. Why learn about metallurgy? [1]
(A) To understand how metals are extracted and purified
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is an ore? [1]
(A) A mineral from which metal can be economically extracted
(B) Any rock
(C) A pure metal always
(D) A type of gas
10. What is gangue? [1]
(A) Unwanted impurities in ore
(B) The metal itself
(C) A type of acid
(D) A type of furnace
11. How are reactive metals like aluminium extracted? [1]
(A) Electrolysis
(B) Reduction with carbon
(C) Heating alone
(D) Filtration
12. How are moderately reactive metals like iron extracted? [1]
(A) Reduction with carbon
(B) Electrolysis only
(C) Filtration
(D) Distillation
13. What furnace is used for extracting iron? [1]
(A) Blast furnace
(B) Electric furnace only
(C) Solar furnace
(D) No furnace needed
14. What is iron ore commonly called? [1]
(A) Haematite
(B) Bauxite
(C) Galena
(D) Cinnabar
15. What is refining used for? [1]
(A) Removing remaining impurities from extracted metal
(B) Adding more impurities
(C) Making the ore heavier
(D) Nothing useful
16. Why learn about metallurgy? [1]
(A) To understand how metals are extracted and purified
(B) No reason
(C) It's not useful
(D) Only for tests