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Chemistry

Chemistry
Main source of lead pollution is from

Tobacco
Insecticides
Leaded gasoline
Sewage

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Chemistry
The term 'brown air' is used for

Photochemical smog
Acid fumes
Sulphurous smog
Industrial smog

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Chemistry
The compound to which H2 does not add is

Tetra – a –naphthylethylene
Tetra –9 – phenanthrylethylene
Tetraphenyl ethylene
Biphenyl ethylene

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Chemistry
Which of the following is a man-made source of air pollution ?

Bacterial action in soil and swamp areas
All of these
Forest fire
Automobile exhaust

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Chemistry
Find the odd one:

Limestone
Slaked lime
Marble
Chalk

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Chemistry
In a reaction of the type A+B ? C+D one could ensure it to be a first order reaction by :

Increasing the concentration of a product
Increasing the temperature
Increasing the concentration of a reactant
Adding a catalyst

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MORE MCQ ON Chemistry

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