EASY
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IMPORTANT
Earn 100
Which of the following causes the rusting of iron?
1) Oxidation.
2) Reduction.
3) Chemical reaction with Oxygen.
4) Chemical reaction with CO2.
Select the correct answer using the codes given below:
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Important Questions on Chemistry
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IMPORTANT
Which of the following pairs is incorrect?
(1) Haematite : Iron
(2) Pitch blende : Copper
(3) Monazite : Thorium
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Which of the following metal (shown by its symbol) is generally used for making filaments of bulb?
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Which metal is responsible for Itai-Itai disease?
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In order to prevent it from coming in contact with oxygen, sodium metal is kept under:
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Which of the following when mixed with a metal forms amalgam?
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What is galvanized iron?
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IMPORTANT
The ore of aluminium is:
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IMPORTANT
Heavy metals got their name because compared to other atoms they have :
