Tag: hydroxy compounds and ethers

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Questions Related to hydroxy compounds and ethers

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

Alcohols and ethers are functional isomers and belong to:

  1. same homologous series

  2. same functional group

  3. different homologous series

  4. both B and C
Reveal answer Fill a bubble to check yourself
C Correct answer
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
Multiple choice chemistry hydroxy compounds and ethers physical properties of ethers ethers alcohols, phenols and ethers

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

  1. optical activity

  2. functional isomerism

  3. chain isomerism

  4. metamerism
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Which of the following are metamerism?

  1. Ethoxy ethane and methoxypropane

  2. Phenetole and benzyl methyl ether

  3. Both a and b

  4. None of above
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Ethers exbhit which of the following isomerism(s)?

  1. Chain isomerism

  2. Functional isomerism

  3. Metamerism

  4. A, B &C
Reveal answer Fill a bubble to check yourself
D Correct answer
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.






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

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

  1. Chain isomerism

  2. Positional isomerism

  3. Functional isomerism

  4. Metamerism
Reveal answer Fill a bubble to check yourself
D Correct answer
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.