Question # 1

Oxidation of Ethene with KMnO₄ produces.

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Oxalic acid

Glyoxal

Ethene Glycol

Propene glycol

Which factor determines the severity of a pollutant?

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Chemical nature

concentration

Persistence

All of them

Water which produces good lather with soap is called.

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Soft water

Hard water

Heavy water

All of them

Which one of the following is not faction of crude oil.

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Paraffin wax

Asphalt

Fuel oil

Petroleum coke

Which is not a heavy metal.

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Cadmium

Lead

Zinc

Murcury

The energy provided by carbohydrates in per gram.

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17 KJ

21 KJ

35 KJ

10 KJ

Night blindness is because of deficiency of:

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Vitamin A

Protein

Vitamin C

Vitamin D

Benzene is formed by the polymerization of.

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Alkene

Alkane

Acetylene

Methane.

Which of the following statement s is not true about fossil fuels?

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they all contain carbon

They are renewable

they produce pollutants when burnt

they cause acid rain

Dehydrohalogenation take place in the presence of.

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Aqueous NaOH

Alcoholic KOH

Aqueous KOH

Alcoholic NaOH

Nucleic acids made up of long chain of.

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Nucleotide

Fatty acids

Amino acid

None of them

Which one of the diseases causes severe diarrhea and can be fatal?

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Jaundice

Dysentery

Cholera

Typhoid

The percentage of potable water on earth is.

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2%

0.2%

0.02%

0.002%

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