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Exercise 1

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Fig.1

Exercise

Carbonic acid is ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... unstable.

Correct!

... extremely stable.

Sorry, that is wrong.

... very hard.

No, sorry.

... a medicinal drug.

No, sorry.

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Exercise

The salts of carbonic acid are ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... not isolable.

Sorry, that is not correct.

... gaseous at room temperature.

No! They are salts!

... isolable.

Correct!

... toxic.

No, except from water-soluble carbonates or hydrogencarbonates with a toxic counter ion.

... hydrocarbons.

No! Certainly not!

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Exercise

Monoesters of carbonic acid are ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... unstable.

Correct!

... extremely stable.

No, on the contrary.

... ketones.

What? No!

... medicinal drugs.

No, sorry.

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Exercise

Diesters of carbonic acid are ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... unstable.

Sorry, that is not correct.

... relatively stable.

Correct!

... ketones.

No, certainly not!

... medicinal drugs.

No, sorry.

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Exercise

Decarboxylation of carbonic acid's monoesters yields ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... ketones.

No, sorry.

... alcohols.

That is correct!

... aldehydes.

Sorry, that is wrong.

... alkynes.

No, sorry.

... alkenes.

Sorry, that is not correct.

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Exercise

Carbamic acid, the primary monoamide of carbonic acid, is ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... unstable.

Yes! Correct!

... stable.

No, sorry.

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Exercise

The primary diamide of carbonic acid is ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... unstable.

No, sorry.

... stable.

That is correct!

... acetyl CoA.

No! Certainly not!

... liquid.

No, it is urea and urea is a solid substance.

... urea.

Correct!

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Exercise

During the Kolbe electrolysis reaction, ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... a radical intermediate is formed.

Correct!

... an anionic intermediate is formed.

No, sorry.

... a cationic intermediate is formed.

Sorry, that is wrong.

... a zwitterionic intermediate is formed.

No, sorry.

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Exercise

The intermediate hydrocarbon species generated during Kolbe electrolysis reaction ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... are oxidized.

No, sorry.

... combine.

Correct!

... are reduced.

Sorry, that is wrong.

... are chlorinated by electrochemically generated chlorine radicals.

No, sorry.

... are catalytically hydrogenated.

No, sorry.

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