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Chemistry

Chemistry
The depletion of ozone layer is due to

Sulphur dioxide
Chloro fluoro carbon
Carbon dioxide
Ethane

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Chemistry
Haloarenes are more stable than haloalkanes due to

Inductive effect
Resonance effect
All of them
Hyper conjugative effect

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

Lead
Zinc
Platinum
Mercury

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.2 mole
0.4 mole
0.25 mole
0.5 mole

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Chemistry
Permanent – hardness of water may be removed by addition of

Lime
Alum
Sodium carbonate
Potassium Permangante

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Chemistry
'Fire-fighting clothes' are made from

Asbestos
Mica
Steatite
Talc

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MORE MCQ ON Chemistry

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