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Chemistry

Chemistry
An electric iron has a heating element made of :

Nichrome
Tungsten
Zinc
Copper

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Chemistry
Which type of fire extinguisher is used for petroleum fire ?

Soda acid type
None of these
Powder type
Foam type

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Chemistry
The graphite rods in the nuclear reactor

react with U to release energy
produce neutrons
convert fast moving neutrons into thermal neutrons
undergo combustion which triggers the nuclear fission

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Chemistry
Which one of the following is not a cause for present global warming and climate change ?

CFC emission
Methane emission
Deforstation
Carbondioxide emission

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Chemistry
Drinking soda is

Acidic
Alkaline
Neutral
Oxidant

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Chemistry
The chemical name of ‘Common salt’ is

Sodium nitrate
Calcium chloride
Ammonium chloride
Sodium chloride

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MORE MCQ ON Chemistry

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