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Exercises

Exercise

The halogens fluorine, chlorine, and bromine are ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... more electropositive than carbon.

Sorry, that is wrong.

... more electronegative than carbon.

Correct.

... more yellow than carbon.

No. That is quite a nonsens, or?

... more electroneutral than carbon.

No. The term "more electroneutral" is not meaningful.

... more electrochemical than carbon.

Sorry, that is wrong. What does the term "more electrochemical" ought to mean?

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Exercise

The polarity of the carbon-halogen bond is the basis of two frequently found reaction types of alkyl halides, namely ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... substitution and addition reactions.

No.

... addition and elimination reactions.

Sorry, that is wrong.

... substitution and polymerization reactions.

Sorry, that is wrong.

... addition and polymerization reactions.

No, sorry.

... substitution and elimination reactions.

Correct!

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Exercise

With respect to kinetics, substitutions, as well as eliminations, may be classified into two categories: First-order and second-order reactions. Which of the following compound families usually participate in second-order reactions?

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Please make a choice.

correct

wrong

partly correct

This is the right answer

Tertiary alkyl halides.

Sorry, that is wrong.

Quaternary alkyl halides.

No. Think about how many quarternary alkyl halides do actually exist.

Primary and secondary alkyl halides.

Well-done. That is correct!

Carbonyls.

No.

Carbamates.

Sorry, that is wrong.

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Exercise

With respect to kinetics, substitutions, as well as eliminations, may be classified into two categories: First-order and second-order reactions. Which of the following compound families usually participate in first-order reactions?

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

Quarternary alkyl halides.

No. Think about how many quarternary alkyl halides do actually exist.

Tertiary alkyl halides.

Correct!

Primary and secondary alkyl halides.

Sorry, that is wrong.

Carbamates.

No.

Carbonyls.

No, sorry.

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Exercise

Which parameters mainly determine the mechanism of a nucleophilic substitution?

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Please make a choice.

correct

wrong

partly correct

This is the right answer

The substrate structure.

The reactivity of the nucleophile.

The chemical qualities of the leaving group.

The irradiation by dayligght.

The solvent applied.

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