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Exercises: Reactions with Organolithium Compounds and Metal Hydrides

Exercise

Carboxylic acids are Brønsted acids, as well as ...

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

... strong Brønsted bases.

Sorry, that is wrong.

... Lewis acids.

Correct!

... strong Lewis bases.

No, sorry.

... weak Arrhenius acids.

Sorry, that is not correct.

... strong Arrhenius bases.

No, sorry.

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Exercise

Carboxylic acids are reduced to the corresponding primary alcohol by ...

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Please make a choice.

correct

wrong

partly correct

This is the right answer

... DIBALH at -75 to -70 °C.

Sorry, that is wrong.

... boron aluminum hydride.

No!

... lithium aluminum hydride.

Correct!

... polonium aluminum hydride.

Sorry, that is not correct.

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Exercise

Fig.1

Which reaction does the reaction scheme depict?

Please make a choice.

Please make a choice.

correct

wrong

partly correct

This is the right answer

The oxidation of carboxylic acids to ketones.

No, sorry. The conversion of a carboxylic acid to a ketone is a reduction!

The reduction of carboxylic acids to primary alcohols.

No, sorry.

The reduction of carboxylic acids to ketones.

Yes. That is correct!

The decarboxylation of carboxylic acids to primary alcohols.

Sorry, that is wrong.

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