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Chemistry

Chemistry
Ozone consists of

Oxygen only
Oxygen and Carbon
Oxygen and Nitrogen
Hydrogen and Carbon

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Chemistry
Which one of the following chemicals helps in fruit ripening?

Ethephon
Isoproturan
Atrazine
Malathion

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Chemistry
Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between

5 and 10 km
10 and 20 km
50 and 100 km
20 and 50 km

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Chemistry
Suspension particles have the size between

10–8 – 10–10cm
10–2 – 10–4 cm
10–1 – 10–2 cm
10–5 – 10–7cm

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Chemistry
The sewage obtained from water closets and urinals is known as

Industrial waste
Sanitary waste
Garbage
Sullage

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Chemistry
The greenhouse effect is caused by the higher level of which gas in the atmosphere ?

Nitrous oxide
Carbon monoxide
Carbon dioxide
Sulphur dioxide

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MORE MCQ ON Chemistry

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