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This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
The most important ore of aluminium is?
Correct!
Wrong!
Potassium Permanganate is used for purifying drinking water, because?
Correct!
Wrong!
Which metal pollute the air of a big city?
Correct!
Wrong!
Permanent hardness of water can be removed by adding?
Correct!
Wrong!
Heavy water is?
Correct!
Wrong!
The property of a substance to absorb moisture from the air on exposure is called ?
Correct!
Wrong!
From which mineral is radium obtained?
Correct!
Wrong!
Which of the following does not contain a coinage metal?
Correct!
Wrong!
Science Quiz 49
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