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Chemistry

Chemistry
Element 106 was discovered by

Rutherford
Lawrence
Kurchatove
Seaborg

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Chemistry
The purest form of water is

Tap water
Rain water
Distilled water
Ground water

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Chemistry
Glycol is used to manufacture which of the following ?

Rubber
Terylene
Nylon
Artificial silk

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Chemistry
The term 'brown air' is used for

Industrial smog
Acid fumes
Photochemical smog
Sulphurous smog

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Chemistry
Which of the following laser types is used in a laser printer?

Excimer laser
Semiconductor laser
Dye laser
Gas laser

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Chemistry
Which one of the following is most electronegative

Lead
Carbon
Silicon
Tin

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