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Chemistry

Chemistry
Main source of lead pollution is from

Insecticides
Sewage
Leaded gasoline
Tobacco

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Chemistry
'Bhopal gas tragedy' 1984 is related to which gas

Methyl isocyanate
Methyl bromide
Aluminium Phosphide
Carbon dioxide

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Chemistry
KMnO4 can be used as

Pesticide
Fertilizer
Disinfectant
Insecticide

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Chemistry
When cathode rays strike a target of high atomic weight, they give rise to

X-rays
?-rays
? and ? rays
Positive rays

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Chemistry
Ozone layer is present in

Troposphere
Exosphere
Stratosphere
Ionosphere

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Chemistry
Which of the following does the Nucleus of an atom consist of?

Protons and electrons
Protons and neutrons
Protons
Electrons

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