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Chemistry

Chemistry
The purest form of water is

Distilled water
Ground water
Rain water
Tap water

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Chemistry
Which of the following is an iron ore ?

Nitrite
Lignite
Bauxite
Magnetite

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Chemistry
Highly toxic gas which causes headache, visual difficulty, paralysis and even death is

CO2
CO
All of these
O3

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Chemistry
Aerated water contains

NO2
H2
SO2
CO2

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Chemistry
Cement containing excess amount of lime

Is quick setting
Becomes more strong
Is slow setting
Cracks during setting

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Chemistry
The alkaloid naturally found in coffee, cocoa and cola nut is

Morphine
Cocaine
Caffeine
Tannin

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MORE MCQ ON Chemistry

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