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Chemistry

Chemistry
Which one is the most reactive halogen

Bromine
Fluorine
Chlorine
Iodine

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Chemistry
Candle is a mixture of

Paraffin was and stearic acid
Bees wax and paraffin wax
Bees wax and stearic acid
Higher fatty acids and stearic acid

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Chemistry
Methanoic and ethanoic acids can be distinguished by the action of

NaHCO3
SOCl2
NaOH
Tollen's reagent

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Chemistry
The function of skimming tank in sewage treatment is to remove

Suspended solids
Inorganic substances
Oil and fatty substances
Gritty substances

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Chemistry
Pollutant from motor car exhaust that causes mental disease is

SO2
Hg
Lead
NO2

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Chemistry
The metal ion present in Vitamin B12 is

Iron
Cobalt
Zinc
Nickel

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MORE MCQ ON Chemistry

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