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Industrial Production of Ethanol and Biofuels

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Industrial Production of Ethanol and Biofuels

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Questions and Answers

What is the industrial process for producing alcohols from alkenes?

Pyrolysis in the presence of a base catalyst

Oxidation in the presence of a base catalyst

Hydration in the presence of an acid catalyst (correct)

Fermentation in the presence of a reducing agent

How is ethanol primarily produced industrially?

Esterification of aldehydes

Oxidation of alkenes

Fermentation of glucose (correct)

Reduction of carboxylic acids

Which type of alcohol can be oxidized to aldehydes?

Tertiary alcohols

Secondary alcohols

Quaternary alcohols

Primary alcohols (correct)

What happens when acidified potassium dichromate(VI) is used with tertiary alcohols?

No significant reaction occurs Signup and view all the answers

Why are primary alcohols considered more easily oxidizable compared to tertiary alcohols?

Primary alcohols have a hydrogen atom directly bonded to the carbon bearing the -OH group Signup and view all the answers

What method is used to separate ethanol produced by fermentation?

Fractional distillation Signup and view all the answers

In what form can ethanol produced by fermentation be used as a fuel?

As a biofuel Signup and view all the answers

When discussing biofuels, what aspect should students be able to explain?

The meaning of the term biofuel Signup and view all the answers

Which type of alcohol is easily oxidized to ketones?

Secondary alcohols Signup and view all the answers

What is the purpose of acidified potassium dichromate(VI) in alcohol oxidation?

It acts as an oxidizing agent. Signup and view all the answers