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Chemistry

Chemistry
The apparatus used to test acidity of aqueous solution is

Acidmeter
Ammeter
PH meter
Hygrometer

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Chemistry
Which one of the following minerals is found in pure form?

Iron
Bauxite
Manganese
Copper

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Chemistry
Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere?

Carbon dioxide
Nitrous oxide
Sulphur dioxide
Chlorofluorocarbons

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Chemistry
Which of the following elements is not present in stainless steel?

Tungsten
Nickel
Iron
Chromium

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Chemistry
Global warming is mainly due to accumulation of

Carbon monoxide
Oxides of sulphur
Oxides of nitrogen
Carbon dioxide

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Chemistry
How many electrons can be accommodated in d-orbital

3
8
6
10

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