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10th West Bengal Board
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The chemical formula of cryolite is

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Important Questions on Metallurgy

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10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 9
Heating of an ore in a limited supply of air at a temperature below its melting point is known as
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10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 10
The pair of metals which are liquid at room temperature
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10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 11
The ore of iron is generally reduced to metal in a blast furnace by
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10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 12
The unwanted impurities associated with the ore is known as
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10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 1
An aluminium alloy _____ is used in making powerful magnets.
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10th West Bengal Board
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PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 4
Platinum is an example of _____ metal.
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10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 5
Sodium is stored under _____.
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10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 12 - Metallurgy>EXERCISE>Q 8
The substance added with ore during smelting to remove gangue is _____.