EASY
10th West Bengal Board
IMPORTANT
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Corrosion of iron is known as rusting.

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Important Questions on Metallurgy

EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 6
Zinc-amalgam contains zinc and aluminium.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 7
Zinc oxide is used in making cosmetics.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 8
Carbonate ores are roasted to get metal oxide.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 9
A waste material formed in the furnace when flux reacts with gangue is known as 'slag'.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 10
The slag formed in the blast furnace during the extraction of iron is calcium silicate CaSiO3.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 1
Name the metal present in 'blood pigment'.
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 2
Give two general characteristics of alkali metals.
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 3

Choose from the following list: ZnO, MgO, Mn2O7

(a) Basic oxide.

(b) Acidic oxide

(c) Amphoteric oxide