Assertion : $2, 6 - D i m e t h y l - 4 - n i t r o p h e n o l (I)$ is more acidic than $3, 5 - d i m e t h y l - 4 - n i t r o p h e n o l (I I) .$ Reason: It is due to the steric inhibition of the resonance of $(- N O_{2})$ group with two $(M e)$ groups in $(I I) .$

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$2, 6 - D i m e t h y l - 4 - n i t r o p h e n o l (I)$ is more acidic than $3, 5 - d i m e t h y l - 4 - n i t r o p h e n o l (I I) .$
It is due to the steric inhibition of the resonance of $(- N O_{2})$ group with two (Me) groups in (II).
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Similar questions

Assertion (A) p-nitrophenol is more acidic than phenol.
Reason (R) Nitro group helps in the stabilisation of the phenoxide ion by dispersal of negative charge due to resonance.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

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Q. Assertion
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Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

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Assertion :2,6−Dimethyl−4−nitrophenol(I) is more acidic than 3,5−dimethyl−4−nitrophenol(II). Reason: It is due to the steric inhibition of the resonance of (−NO2) group with two (Me) groups in (II).

Assertion : $2, 6 - D i m e t h y l - 4 - n i t r o p h e n o l (I)$ is more acidic than $3, 5 - d i m e t h y l - 4 - n i t r o p h e n o l (I I) .$ Reason: It is due to the steric inhibition of the resonance of $(- N O_{2})$ group with two $(M e)$ groups in $(I I) .$