Which of These Compounds Will React with Cold Concd $\equiv$

question 121

Multiple Choice

Which of these compounds will react with cold concd.H₂SO₄,as well as Br₂ in CCl₄ ?

• A) CH₃CH₂CH=CHCH₃
• B) CH₃CH₂CH₂CH=CH₂
• C) CH₃CH₂C\( \equiv\)CCH₃
• D) (CH₃)₂CHC\( \equiv\)CH
• E) All of these

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Definitions:

Bioaccumulation

Bioaccumulation is the process by which certain toxic substances (such as heavy metals or DDT) accumulate in an organism, often reaching harmful levels.

Biological Magnification

The method through which the levels of harmful compounds accumulate progressively in each subsequent level of the food chain.

Persistence

A characteristic of certain chemicals that are extremely stable and may take many years to be broken down into simpler forms by natural processes.

Nitrogen Cycle

A biogeochemical cycle that describes the transformations of nitrogen and nitrogen-containing compounds in nature, involving processes like fixation, nitrification, and denitrification.