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Chemistry

Chemistry
The main active constituent of tea and coffee is

chlorophyll
aspirin
nicotine
caffeine

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Chemistry
Candle is a mixture of

Higher fatty acids and stearic acid
Bees wax and paraffin wax
Paraffin was and stearic acid
Bees wax and stearic acid

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Chemistry
Which one is not a pure form of carbon

Diamond
Gold
Coal
Graphite

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Chemistry
If water smells bad, then that odour can be removed by adding

Bleach
Alum
Deactivated nitrogen
Activated carbon

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Chemistry
At room temperature, the metal that remains liquid is:

Zinc
Lead
Mercury
Platinum

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Chemistry
Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as

Synergism
Additives
Antagonism
Independent

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MORE MCQ ON Chemistry

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