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Chemistry

Chemistry
Main source of lead pollution is from

Insecticides
Tobacco
Sewage
Leaded gasoline

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Chemistry
Air is said to be saturated when :

Its thickness is maximum
It blows over the barren land
It contains maximum content of water vapour
Its pressure is minimum

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Chemistry
The rusting of iron is a/an

None of these
Electrochemical change
Physical change
Electrical change

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Chemistry
The unit to measure the flow of water is

Micro Mho
Ohm meter
Cusecs
Milli curie

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Chemistry
Galvanised iron is made by coating iron with

Zinc
Chromium
Nickel
Sulphur

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Chemistry
The metal present in vitamin B12 is

Mg
Co
Fe
Mo

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MORE MCQ ON Chemistry

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