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Chemistry

Chemistry
Tear gas used by the police to disperse the mob contains

Ammonia
Carbon dioxide
Hydrogen sulphide
Chlorine

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Chemistry
When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called

Smog
Green house effect
Eutrophication
None of these

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Chemistry
The structure of NaCl crystal is

Octahedral
Face centered cubic
Body centered cubic
Square planar

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Chemistry
Among the fuels given below, the one with highest calorific value is

Wood
Coke
Natural gas
Coal

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Chemistry
Which metal is the heaviest in periodic table among the following ?

Pb
Os
W
Pt

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Chemistry
Interveinal necrotic spots on leaves appear due to

O3injury
HF injury
NO2injury
SO2injury

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MORE MCQ ON Chemistry

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