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Exercise: Haloalkanes (alkyl halides) in nature

Exercise

Today, halothan (2-bromo-2-chloro-1,1,1-trifluoroethane) is an important

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correct

wrong

partly correct

This is the right answer

contraceptive

Incorrect

anaesthetic

Correct

propellant

Incorrect

insectifuge

Incorrect

pesticide

Incorrect

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Exercise

Forest fires, volcanic eruptions, and maritime metabolic processes produce about five million tons of methyl chloride every year, while industrial emissions of methyl chloride only amount to about

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correct

wrong

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This is the right answer

26,000,000 tons per year

Incorrect

1,000 tons per year

Incorrect

260,000 tons per year

Incorrect

26,000 tons per year

Correct

2.6 tons per year

Incorrect

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Exercise

Bromotrifluoromethane is especially suitable as fire-extinguishing agent in aeroplanes and for electrical components. Why?

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It is non-conductive.

Incorrect

It is inexpensive.

Incorrect

It smells very good.

Incorrect

It evaporates without leaving any remains.

Correct

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Exercise

Thyroxine deficiency causes

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correct

wrong

partly correct

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goiter

Correct

sleeplessness

Incorrect

hair loss

Incorrect

alcoholism

Incorrect

maniac depression

Incorrect

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