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प्रश्न
Assertion: p-nitrophenol is more acidic than phenol.
Reason: Nitro group helps in the stabilisation of the phenoxide ion by dispersal of negative charge due to resonance.
विकल्प
Assertion and reason both are correct and reason is correct explanation of assertion.
Assertion and reason both are wrong statements.
Assertion is correct statement but reason is wrong statement.
Assertion is wrong statement but reason is correct statement.
Both assertion and reason are correct statements but reason is not correct explanation of assertion.
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उत्तर
Assertion and reason both are correct and reason is correct explanation of assertion.
Explanation:
P-nitro phenol is more acidic as nitro group helps in the stabilization of the phenoxide ion by dispersal of negative charge due to resonance.
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संबंधित प्रश्न
Name the following compound according to the IUPAC system.
Name the following compound according to the IUPAC system.
\[\begin{array}{cc}
\ce{CH3 - C = C - CH2OH}\\
|\phantom{......}|\phantom{.....}\\
\ce{CH3}\phantom{.}\ce{Br}\phantom{....}\\
\end{array}\]
Write the IUPAC name of the following compound:
Write the IUPAC name of the following compound:
C6H5 – O – C7H15(n−)
Give the IUPAC name of the following ether:
CH3CH2CH2OCH3
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
Write IUPAC name of the following compound (CH3)2 N − CH2CH3
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?
Write IUPAC name of the following
In a carbinol system of nomenclature tert.butyl alcohol is named as _______________
Glycerol is ____________.
C6H5OCH2CH3 is called:
Which of the following compounds will react with sodium hydroxide solution in water?
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: Phenols give o- and p-nitrophenol on nitration with conc. \[\ce{HNO3}\] and \[\ce{H2SO4}\] mixture.
Reason: –OH group in phenol is o–, p– directing.
Identify A and B in the following:
