Home
Class 12
CHEMISTRY
Assertion (A) Phenols give o-and p-nitro...

Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc. `HNO_(3)` and `H_(2)SO_(4)` mixture.
Reason (R) `-OH` group in phenol is o-,p-directing.
(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.

A

Assertion and reason both are correct and reason is correct explanation of assertion.

B

Assertion and reasons both are wrong statements.

C

Assertion is correct statement but reasons is wrong statement.

D

Assertion is wrong statement but reason is correct statement

Text Solution

Verified by Experts

The correct Answer is:
D

Correct assertion . Phenol gives o- and p-nitrophenol on nitration with dilute nitric acid at low temperature (293 K)
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion (A) Phenol forms 2, 4, 6-tribromophenol o treatment with Br_(2) in carbon disulphide at 273K. Reason (R) Bromine polarises in carbon disulphide. (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.

Assertion (A) Glycine must be taken through diet. Reason (R) It is an essential amino acid. (a)Assertion and reason both are correct statements and reason explains the assertion. (b)Both assertion and reason are wrong statements (c)Assertion is correct statement and reason is wrong statement. (d)Assertion is wrong statement and reason is correct statement.

Assertion (A) Addition reaction of water to but-1-ene in acidic medium yields butan-1-ol. Reason (R) Addition of water in acidic medium proceeds through the formation of primary carbocation. (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.

Assertion : m-Bromo toluene can be prepared by m-toluidene Reason : Amino group is meta directing (a)Assertion and reason both are correct statements and reason explains the assertion. (b)Both assertion and reason are wrong statements (c)Assertion is correct statement and reason is wrong statement. (d)Assertion is wrong statement and reason is correct statement.

Assertion (A) D(+)- Glucose is dextrorotatory in nature. Reason (R) 'D' represents its dextrorotatory nature. (a)Assertion and reason both are correct statements and reason explains the assertion. (b)Both assertion and reason are wrong statements (c)Assertion is correct statement and reason is wrong statement (d)Assertion is wrong statement and reason is correct statement.

Assertion (A) Vitamin D can be stored in our body. Reason (R) Vitamin D is fat soluble vitamin. (a)Assertion and reason both are correct statements and reason explains the assertion. (b)Both assertion and reason are wrong statements (c)Assertion is correct statement and reason is wrong statement. (d)Assertion is wrong statement and reason is correct statement.

Assertion (A) beta -glycosidic linkage is present in maltose. Reason (R) Maltose is composed of two glucose units in which C-1 of one glucose unit is linked to C-4 of another glucose unit. (a)Assertion and reason both are correct statements and reason explains the assertion. (b)Both assertion and reason are wrong statements (c)Assertion is correct statement and reason is wrong statement. (d)Assertion is wrong statement and reason is correct statement.

Assertion (A) In presence of enzyme, substrate molecule can be attacked by the reagent effectively. Reason (R) Active sites of enzymes hold the substrate molecule in a suitable position. (a)Assertion and reason both are correct statements and reason explains the assertion. (b)Both assertion and reason are wrong statements (c)Assertion is correct statement and reason is wrong statement. (d)Assertion is wrong statement and reason is correct statement.

Assertion: Glucose reacts with hydroxylamine to form an oxime and alsoadds a molecule of hydrogen cyanide to give cyanohydrin. Reason: The carbonyl group is present in the open chain structure of glucose. (a) Both assertion and reason are correct statements, and reason is the correct explanation of the assertion (b) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion (c) Assertion is correct, but reason is wrong statement. (d) Assertion is wrong, but reason is correct statement.

Assertion (A) Coagulation power of Al^(3+) is more than Na^(+) . Reason (R) Greater the valency of the flocculating ion added, greater is its power to cause precipitation (Hardy-Schulze rule) . (a)Assertion and reason both are correct and the reason is correct explanation of assertion. (b)Assertion and reason both are correct but reason does not explain assertion. (c)Assertion is correct, but reason is incorrect. (d)Assertion is incorrect, but reason is correct.