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Chemistry

Chemistry
The gas used to dilute oxygen for breathing by deep sea divers is:

Helium
Neon
Argon
Nitrogen

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Chemistry
The liquid waste from kitchens and baths, of residences is known as :

Domestic sewage
Sullage
Refuse
Storm water

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Chemistry
The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

an oxidation reaction
a condensation reaction
an elimination reaction
an addition reaction

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Chemistry
Combustion of a candle is a/an

Photochemical reaction
Exothermic reaction
Endothermic reaction
Physical change

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Chemistry
Chemical name of Gammaxane is

Chloro benzene
Toluene
Aniline
Benzene hexachloride

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Chemistry
The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of

periodic table of contents
atomic structure
metallurgy
discovery of elements

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MORE MCQ ON Chemistry

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