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10 thclass ps

Authored by Baggu Kalyani

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10th Grade

10 thclass ps
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10 questions

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1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

The sulphide ore of mercury is _________

2.

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30 sec • 1 pt

The process of changing carbonate ores into oxides by heating strongly in limited air is called ________

3.

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30 sec • 1 pt

The process of converting sulphide ores into oxides strongly in the presence of excess air is called _________

4.

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30 sec • 1 pt

Metal oxides which react with both acids as well as bases to produce salts and water are known as ____________

5.

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30 sec • 1 pt

An allotrope of carbon which is a conductor of electricity is _________

6.

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30 sec • 1 pt

The hardest allotrope of carbon is __________

7.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

The non- metal which is in liquid state is _________

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