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प्रश्न
Explain metamerism with suitable examples of ethers
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उत्तर
The property in which ethers have same molecular formula but different alkyl groups in their structures is called metamerism and the isomers obtained are called as metamers.
Examples :
e.g. C2H5 - O - C2H5 - Diethyl ether;
CH3 - O - C3H7 - Methyl n-propyl ether
In the above example both ethers are having same molecular formula i.e. C4H10 but different alkyl groups in their structure, so they are metamers of each other.
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संबंधित प्रश्न
Name the following compound according to the IUPAC system.
\[\begin{array}{cc}
\phantom{.....................................}\ce{CH2OH}\\
\phantom{............................}|\\
\ce{CH3 - CH - CH2 - CH - CH - CH3}\\
|\phantom{....................}|\phantom{............}\\
\ce{CH3}\phantom{..............}\ce{OH}\phantom{.........}\\
\end{array}\]
Name the following compound according to the IUPAC system.
Give the IUPAC name of the following ether:
\[\begin{array}{cc}
\ce{C2H5OCH2 - CH - CH3}\\
\phantom{.........}|\\
\phantom{.............}\ce{CH3}
\end{array}\]
Give the IUPAC name of the following ether:
Give the IUPAC name of the following ether:
Which of the following compounds is NOT prepared by the action of alcoholic NI3 on alkyl halide?
(a) CH3NH2
(b) CH3- CH2- NH2
(c) CH3 - CH2 - CH2 - NH2
(d) (CH3)3 C- NH2
3-Methylbutane-2-ol on heating with HI gives ______
How is phenol converted into the following?
picric acid
Write the IUPAC name of the following compound:
In the dehydration of alcohols to alkenes by heating with concentrated sulphuric acid, the initiation step is:
(1) formation of carbonation
(2) formation of an ester
(3) protonation of the alcohol molecule
(4) elimination of water
What.will be the product fonned when chlorobenzene is heated with sodium metal in the presence of dry ether?
Propanoic acid to ethylamine.
Resorcinol on distillation with zinc dust gives _________.
Write structural formula for pentane-1,4-diol.
Write structural formulae for Cyclohex-2-en-1-ol.
Cresol has ____________.
When ethyl alcohol reacts with acetic acid, the products formed are:
1-Propanol and 2-propanol can be best distinguished by:
Which of the following compounds will react with sodium hydroxide solution in water?
Which of the following reagents can be used to oxidise primary alcohols to aldehydes?
(i) \[\ce{CrO3}\] in anhydrous medium.
(ii) \[\ce{KMnO4}\] in acidic medium.
(iii) Pyridinium chlorochromate.
(iv) Heat in the presence of Cu at 573 K.
Explain why p-nitrophenol is more acidic than phenol.
Assertion: IUPAC name of the compound
\[\begin{array}{cc}
\ce{CH3 - CH - O - CH2 - CH2 - CH3}\\
|\phantom{....................}\\
\ce{CH3}\phantom{.................}
\end{array}\] is 2-Ethoxy-2-methylethane.
Reason: In IUPAC nomenclature, ether is regarded as hydrocarbon derivative in which a hydrogen atom is replaced by —OR or —OAr group [where R = alkyl group and Ar = aryl group]
Assertion: Like bromination of benzene, bromination of phenol is also carried out in the presence of Lewis acid.
Reason: Lewis acid polarises the bromine molecule.
Assertion: Phenol forms 2, 4, 6 – tribromophenol on treatment with \[\ce{Br2}\] in carbon disulphide at 273 K.
Reason: Bromine polarises in carbon disulphide.
Write a chemical reaction for the following conversion:
Acetic acid into ethyl alcohol.
Identify A and B in the following:
How are the following conversions carried out?
Methyl magnesium bromide→2-Methylpropan-2-ol.
Write IUPAC name of the following compound:
\[\begin{array}{cc}
\phantom{................}\ce{CH3}\\
\phantom{.............}|\\
\ce{CH3 - CH - CH - C - CH3}\\
|\phantom{......}|\phantom{......}|\\
\phantom{...}\ce{CH3}\phantom{..}\ce{OH}\phantom{...}\ce{CH3}
\end{array}\]
