323658
Amongst the following the total number of compounds that gives positive iodoform test are ____ . , ,
1 6
2 3
3 5
4 4
Explanation:
Positive iodoform test is given by, i. alcohols containing ii. acetaldehyde (the only aldehyde) and ketones containing group. Thus will give positive iodoform test.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323659
Assertion : forms an isolable crystalline hydrate. Reason : Electron withdrawing chlorine atoms stabilise hydrate by intramolecular H-bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
cannot be prepared in aqueous solution due to acid-base reaction.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323660
A solution of with Rochelle salt and is called
1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
Explanation:
It is a compostion of Fehling's solution
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323661
Compound (A), , is inert to in . Vigorous oxidation with hot alkaline yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with . The possible structure of compound (A) will be :
1
2
3
4
Explanation:
(A) must be a ketone having group attached to carbonyl group because only methyl ketones will give yellow precipitate with .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323662
An organic liquid has an empirical formula . The liquid gives a pale yellow precipitate on warming with iodine in alkaline potassium hydroxide solution. The structural formula of the organic liquid could be
1
2
3
4
Explanation:
Compounds having -group or - group give iodoform test.
323658
Amongst the following the total number of compounds that gives positive iodoform test are ____ . , ,
1 6
2 3
3 5
4 4
Explanation:
Positive iodoform test is given by, i. alcohols containing ii. acetaldehyde (the only aldehyde) and ketones containing group. Thus will give positive iodoform test.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323659
Assertion : forms an isolable crystalline hydrate. Reason : Electron withdrawing chlorine atoms stabilise hydrate by intramolecular H-bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
cannot be prepared in aqueous solution due to acid-base reaction.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323660
A solution of with Rochelle salt and is called
1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
Explanation:
It is a compostion of Fehling's solution
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323661
Compound (A), , is inert to in . Vigorous oxidation with hot alkaline yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with . The possible structure of compound (A) will be :
1
2
3
4
Explanation:
(A) must be a ketone having group attached to carbonyl group because only methyl ketones will give yellow precipitate with .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323662
An organic liquid has an empirical formula . The liquid gives a pale yellow precipitate on warming with iodine in alkaline potassium hydroxide solution. The structural formula of the organic liquid could be
1
2
3
4
Explanation:
Compounds having -group or - group give iodoform test.
323658
Amongst the following the total number of compounds that gives positive iodoform test are ____ . , ,
1 6
2 3
3 5
4 4
Explanation:
Positive iodoform test is given by, i. alcohols containing ii. acetaldehyde (the only aldehyde) and ketones containing group. Thus will give positive iodoform test.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323659
Assertion : forms an isolable crystalline hydrate. Reason : Electron withdrawing chlorine atoms stabilise hydrate by intramolecular H-bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
cannot be prepared in aqueous solution due to acid-base reaction.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323660
A solution of with Rochelle salt and is called
1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
Explanation:
It is a compostion of Fehling's solution
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323661
Compound (A), , is inert to in . Vigorous oxidation with hot alkaline yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with . The possible structure of compound (A) will be :
1
2
3
4
Explanation:
(A) must be a ketone having group attached to carbonyl group because only methyl ketones will give yellow precipitate with .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323662
An organic liquid has an empirical formula . The liquid gives a pale yellow precipitate on warming with iodine in alkaline potassium hydroxide solution. The structural formula of the organic liquid could be
1
2
3
4
Explanation:
Compounds having -group or - group give iodoform test.
323658
Amongst the following the total number of compounds that gives positive iodoform test are ____ . , ,
1 6
2 3
3 5
4 4
Explanation:
Positive iodoform test is given by, i. alcohols containing ii. acetaldehyde (the only aldehyde) and ketones containing group. Thus will give positive iodoform test.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323659
Assertion : forms an isolable crystalline hydrate. Reason : Electron withdrawing chlorine atoms stabilise hydrate by intramolecular H-bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
cannot be prepared in aqueous solution due to acid-base reaction.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323660
A solution of with Rochelle salt and is called
1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
Explanation:
It is a compostion of Fehling's solution
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323661
Compound (A), , is inert to in . Vigorous oxidation with hot alkaline yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with . The possible structure of compound (A) will be :
1
2
3
4
Explanation:
(A) must be a ketone having group attached to carbonyl group because only methyl ketones will give yellow precipitate with .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323662
An organic liquid has an empirical formula . The liquid gives a pale yellow precipitate on warming with iodine in alkaline potassium hydroxide solution. The structural formula of the organic liquid could be
1
2
3
4
Explanation:
Compounds having -group or - group give iodoform test.
323658
Amongst the following the total number of compounds that gives positive iodoform test are ____ . , ,
1 6
2 3
3 5
4 4
Explanation:
Positive iodoform test is given by, i. alcohols containing ii. acetaldehyde (the only aldehyde) and ketones containing group. Thus will give positive iodoform test.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323659
Assertion : forms an isolable crystalline hydrate. Reason : Electron withdrawing chlorine atoms stabilise hydrate by intramolecular H-bonding.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
cannot be prepared in aqueous solution due to acid-base reaction.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323660
A solution of with Rochelle salt and is called
1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
Explanation:
It is a compostion of Fehling's solution
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323661
Compound (A), , is inert to in . Vigorous oxidation with hot alkaline yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with . The possible structure of compound (A) will be :
1
2
3
4
Explanation:
(A) must be a ketone having group attached to carbonyl group because only methyl ketones will give yellow precipitate with .
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323662
An organic liquid has an empirical formula . The liquid gives a pale yellow precipitate on warming with iodine in alkaline potassium hydroxide solution. The structural formula of the organic liquid could be
1
2
3
4
Explanation:
Compounds having -group or - group give iodoform test.