Quick Answer: Which of the following are the characteristics of alcohols?

What are the characteristics of alcohols?

Alcohol has three major characteristics; it is a nutrient (energy source), a psycho-active drug and a toxin.

Which of the following is not the characteristic of alcohols?

They are lighter than water.

What are alcohols and how are they classified?

Alcohols are compounds in which one or more hydrogen atoms in an alkane have been replaced by an -OH group. Alcohols may be classified as primary, secondary, or tertiary, according to which carbon of the alkyl group is bonded to the hydroxyl group.

What are the uses of alcohols?

They are highly flammable , making them useful as fuels. They are also used as solvents in marker pens, medicines, and cosmetics (such as deodorants and perfumes). Ethanol is the alcohol found in alcoholic drinks such as wine and beer. Ethanol is mixed with petrol for use as a fuel.

What is the order of esterification?

Primary alcohol > Secondary alcohol > Tertiary alcohol.

What is the general formula of an alcohol?

Alcohol molecules all contain the hydroxyl (-OH) functional group. They are a homologous series and have the general formula C nH 2n+ 1OH. Their names all end in -ol.

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Which alcohol is least reactive with HCl?

Usually, when treated with HBr or HCl alcohols, they undergo a nucleophilic replacement reaction to create an alkyl halide and water. In ethanol, HCl should be extremely soluble – almost as soluble as it is in water.

What are the properties of alcohols and phenols?

Alcohols : Lower alcohols are colourless liquids at normal temperature. The higher alcohols are colourless, odourless waxy solids. Phenols : Phenols, like alcohols, are either colourless liquids or solids. But they usually turn reddish brown due to atmospheric oxidation.

How can you tell the difference between ethers and alcohols?

Alcohols (ROH) can be thought of as derivatives of water in which one of the hydrogen atoms has been replaced by an alkyl group. If both of the hydrogen atoms are replaced by alkyl groups, we get an ether (ROR). These compounds are named by adding the word ether to the names of the alkyl groups.

Do phenols have higher boiling points than alcohols?

Hydrogen bonds are much stronger than these, and therefore it takes more energy to separate alcohol molecules than it does to separate alkane molecules. This the main reason for higher boiling points in alcohols.