Chemistry
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New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(iv) Assertion is a wrong statement but reason is correct.
Explanation: Phenol on treatment with dil. HNO3 form o-nitrophenol and p-nitrophenol.
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(ii) Assertion and reason both are wrong statements.
Explanation: Correct assertion: Phenol on treatment with bromine water can form 2,4,6- tribromophenol
Correct reason: In water, phenol gives phenoxide ions which activate the ring towards electrophilic substitution reaction.
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(iii) Assertion is a correct statement but reason is wrong.
Explanation: Phenoxide ion is stabilized by resonance which is not possible in alkoxide ion.
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(v) Both assertion and reason are correct statements but reason is not correct explanation of assertion.
Explanation: Due to intramolecular hydrogen bonding o-Nitrophenol does not form hydrogen bond with water
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(iv) Assertion is a wrong statement but reason is correct.
Explanation: Bromination of phenol cannot be carried out in presence of Lewis acid.
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(ii) Assertion and reason both are wrong statements.
Explanation: Correct assertion: Boiling points of alcohol are higher than that of ethers of comparable molecular mass.
Correct reason: Alcohols can form intermolecular hydrogen bonding while ethers cannot.
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(iv) Assertion is a wrong statement but reason is correct.
Explanation: 141 pm
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(iv) Assertion is a wrong statement but reason is correct.
Explanation: Correct assertion is the IUPAC name of the compound is 1- (2-propoxy) propane.
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(i) Assertion and reason both are correct and reason is correct explanation of assertion.
Explanation: P-nitrophenol 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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