Chemical Reactions of Aldehydes and Ketones
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323658 Amongst the following the total number of compounds that gives positive iodoform test are ____ .
CH3CH2OH,PhCHO,CH3COCH3, (CH3)2CHOH,HCHO,CH3(CH2)2COCH3, PhCH2OH,CH3CH2COPh

1 6
2 3
3 5
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323659 Assertion :
CCl3CHO 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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323661 Compound (A), C9H10O, is inert to Br2 in CCl4. Vigorous oxidation with hot alkaline KMnO4 yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with NaOI. The possible structure of compound (A) will be :

1 PhCOCH2CH3
2 PhCH2COCH3
3 PhCH2CH2CHO
4 PhCH(CH3)CHO
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323662 An organic liquid has an empirical formula C4H8O. 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 CH3COCH3
2 CH2=CHCH(OH)CH3
3 CH3CH2CH2CHO
4 CH3CH2OCH=CH2
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323658 Amongst the following the total number of compounds that gives positive iodoform test are ____ .
CH3CH2OH,PhCHO,CH3COCH3, (CH3)2CHOH,HCHO,CH3(CH2)2COCH3, PhCH2OH,CH3CH2COPh

1 6
2 3
3 5
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323659 Assertion :
CCl3CHO 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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323660 A solution of CuSO4 with Rochelle salt and NaOH is called

1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323661 Compound (A), C9H10O, is inert to Br2 in CCl4. Vigorous oxidation with hot alkaline KMnO4 yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with NaOI. The possible structure of compound (A) will be :

1 PhCOCH2CH3
2 PhCH2COCH3
3 PhCH2CH2CHO
4 PhCH(CH3)CHO
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323662 An organic liquid has an empirical formula C4H8O. 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 CH3COCH3
2 CH2=CHCH(OH)CH3
3 CH3CH2CH2CHO
4 CH3CH2OCH=CH2
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323658 Amongst the following the total number of compounds that gives positive iodoform test are ____ .
CH3CH2OH,PhCHO,CH3COCH3, (CH3)2CHOH,HCHO,CH3(CH2)2COCH3, PhCH2OH,CH3CH2COPh

1 6
2 3
3 5
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323659 Assertion :
CCl3CHO 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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323660 A solution of CuSO4 with Rochelle salt and NaOH is called

1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323661 Compound (A), C9H10O, is inert to Br2 in CCl4. Vigorous oxidation with hot alkaline KMnO4 yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with NaOI. The possible structure of compound (A) will be :

1 PhCOCH2CH3
2 PhCH2COCH3
3 PhCH2CH2CHO
4 PhCH(CH3)CHO
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323662 An organic liquid has an empirical formula C4H8O. 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 CH3COCH3
2 CH2=CHCH(OH)CH3
3 CH3CH2CH2CHO
4 CH3CH2OCH=CH2
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323658 Amongst the following the total number of compounds that gives positive iodoform test are ____ .
CH3CH2OH,PhCHO,CH3COCH3, (CH3)2CHOH,HCHO,CH3(CH2)2COCH3, PhCH2OH,CH3CH2COPh

1 6
2 3
3 5
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323659 Assertion :
CCl3CHO 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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323660 A solution of CuSO4 with Rochelle salt and NaOH is called

1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323661 Compound (A), C9H10O, is inert to Br2 in CCl4. Vigorous oxidation with hot alkaline KMnO4 yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with NaOI. The possible structure of compound (A) will be :

1 PhCOCH2CH3
2 PhCH2COCH3
3 PhCH2CH2CHO
4 PhCH(CH3)CHO
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323662 An organic liquid has an empirical formula C4H8O. 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 CH3COCH3
2 CH2=CHCH(OH)CH3
3 CH3CH2CH2CHO
4 CH3CH2OCH=CH2
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323658 Amongst the following the total number of compounds that gives positive iodoform test are ____ .
CH3CH2OH,PhCHO,CH3COCH3, (CH3)2CHOH,HCHO,CH3(CH2)2COCH3, PhCH2OH,CH3CH2COPh

1 6
2 3
3 5
4 4
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323659 Assertion :
CCl3CHO 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.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323660 A solution of CuSO4 with Rochelle salt and NaOH is called

1 Benedict's solution
2 Schiff's reagent
3 Fehling's solution
4 Tollen's reagent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323661 Compound (A), C9H10O, is inert to Br2 in CCl4. Vigorous oxidation with hot alkaline KMnO4 yields benzoic acid. Compound "A" gives red precipitate with 2,4-dinitrophenylhydrazine and yellow with NaOI. The possible structure of compound (A) will be :

1 PhCOCH2CH3
2 PhCH2COCH3
3 PhCH2CH2CHO
4 PhCH(CH3)CHO
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323662 An organic liquid has an empirical formula C4H8O. 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 CH3COCH3
2 CH2=CHCH(OH)CH3
3 CH3CH2CH2CHO
4 CH3CH2OCH=CH2