Tag: hydroxy compounds and ethers

Questions Related to hydroxy compounds and ethers

Alcohols and ethers are functional isomers and belong to:

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. same homologous series

  2. same functional group

  3. different homologous series

  4. both B and C

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Correct Option: C
Explanation:
Alcohols and ethers are functional isomers because they have some molecular formula but different structure but they belong to different homologous series. 
$R-CH _2-CH _2-OH$         $R-CH _2O-CH _3$
     alcohol                                              ether

Ethers are functional isomers of ______ .

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. ketones

  2. alcohols

  3. aldehydes

  4. amines

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Correct Option: B
Explanation:

Ethers and alcohols are the functional isomers of each other. They have same molecular formula but different functional groups.

Benzyl alcohol is isomeric with:

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. methoxy methane

  2. anisole

  3. phenetole

  4. benzyl methyl ether

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Correct Option: B

Ethers having same molecular formula but different alkyl groups on either side of the oxygen atoms show:

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. optical activity

  2. functional isomerism

  3. chain isomerism

  4. metamerism

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Correct Option: D
Explanation:

Ethers having same molecular formula but different alkyl groups on either side of the oxygen atoms show metamerism. Ethoxy ethane and methoxypropane, phenetole and benzyl methyl ether show metamerism.

Which of the following are metamerism?

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. Ethoxy ethane and methoxypropane

  2. Phenetole and benzyl methyl ether

  3. Both a and b

  4. None of above

Show answer
Correct Option: C
Explanation:

 Ethers having same molecular formula but different alkyl groups on either side of the oxygen atoms show metamerism. Ethoxy ethane and methoxypropane, phenetole and benzyl methyl ether show metamerism.

Ethers containing two or more carbon atoms show ______ with alcohols.

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. enantiomerism

  2. chain isomerism

  3. metamerism

  4. functional isomerism

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Correct Option: D
Explanation:

Ethers containing two or more carbon atoms show functional isomerism with alcohols. Methoxy methane and ethanol are functional isomers.

An ether with formula $C _4H _{10}O$ has:

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. 6 metamers

  2. 2 metamers

  3. 3 metamers

  4. 5 metamers

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Correct Option: C
Explanation:

Isomers with the same molecular formula but different alkyl groups (around the functional group) are called metamers. An ether with formula $C _4H _{10}O$ has 3 metamers.

Diethyl ether is isomeric with:

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. butanol

  2. butanone

  3. methyl propyl ether

  4. All of the above

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Correct Option: A,C

Ethers exbhit which of the following isomerism(s)?

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. Chain isomerism

  2. Functional isomerism

  3. Metamerism

  4. A, B &C

Show answer
Correct Option: D
Explanation:

Ethers exhibit chain isomerism ,functional isomerism, Metamerism and Chain isomerism.Ethers with the same formula and having different carbon chain skeletons are called chain isomers.

Functional isomers : Ethers are isomeric with alcohols.
Metamerism Isomers with the same molecular formula but different alkyl groups (around the functional group) are called metamers. An ether with formula $C _4H _{10}O$ has 3 metamers.

Hence option D is correct.






Which of the following isomerisms is shown by the given two compounds?

$CH _3CH _2CH _2CH _2OCH _3$      and     $CH _3-\overset{CH _3}{\overset{|}{C}H}-CH _2OCH _3$
      1-Methoxybutane                         1-Methoxy - 2 - Methylpropane

chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

  1. Chain isomerism

  2. Positional isomerism

  3. Functional isomerism

  4. Metamerism

Show answer
Correct Option: D
Explanation:

The given two ethers have different carbon atoms on the two sides of a bifunctional group (-O-). Hence these are the metamers of each other.