An organic compound (A) contains 69.77% carbon, 11.63% hydrogen, and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollens’ reagent but forms an addition compound with sodium hydrogen sulphite and gives a positive iodoform test. On vigorous oxidation, it gives ethanoic and propanoic acid. Compound A would be:

1. Pentan-2-one

2. Butanone

3. 3-Methylbutanone

4. Propan-2-ol

Subtopic:  Isomers & Reaction Mechanism |
 66%
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Phthalic acid on heating with SOCl2  gives:

1. Phthalic anhydride 2. Phthalamide
3. Phthaloyl chloride 4. None of the above
Subtopic:  Carboxylic Acids: Preparation & Properties |
 71%
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An organic compound (A) (molecular formula (C8H16O2) gives a carboxylic acid (B) upon hydrolysis by dilute sulphuric acid and an alcohol (C). Oxidation of(C) with chromic acid produces(B). (C) on dehydration gives but-1-ene. Compound B is:

1. Butanoic acid 2. Propanoic acid
3. Butanol 4. Propanoic acid
Subtopic:  Carboxylic Acids: Preparation & Properties |
 72%
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An organic compound with the molecular formula C9H10O forms a 2,4-DNP derivative, reduces Tollens’ reagent, and undergoes the Cannizzaro reaction. On vigorous oxidation, it gives 1,2-benzenedicarboxylic acid. This organic compound will be:

1. 2-Methyl benzaldehyde

2. 2-Hydroxy benzaldehyde

3. 2-Ethyl benzaldehyde

4. 4-Ethyl benzaldehyde

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 53%
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The below structure is an example of :
Cyanohydrin - Wikipedia

1. Cyanohydrin 2. Hemiacetal
3. Acetal 4. Cyanoalcohol
Subtopic:  Isomers & Reaction Mechanism |
 70%
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The IUPAC name for \(\mathrm{CH}_3 \mathrm{COCH}_2 \mathrm{COCH}_3\) is:
1. Pentane-2,4-dione
2. Pentane-1,4-dione
3. Pentane-2,2-dione
4. Pentane-3,4-dione

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 88%
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The structure of Hex-2-en-4-ynoic acid is

1.    2.  
3.   4. None of these
Subtopic:  Carboxylic Acids: Preparation & Properties |
 88%
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The IUPAC name for PhCOPh is:
1. Diphenylmethanone
2. Benzophenone
3. Dibenzylmethanone
4. Dibenzylketone

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 51%
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The major product formed when cyclohexanecarbaldehyde reacts with PhMgBr and H3O+ is:

1.  2.
3. 4.  None of these
Subtopic:  Aldehydes & Ketones: Preparation & Properties | Isomers & Reaction Mechanism |
 84%
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What is the major product of the reaction between cyclohexanecarbaldehyde and Tollens' reagent?

1.  2.
3. 4. None of these
Subtopic:  Aldehydes & Ketones: Preparation & Properties | Name Reaction |
 77%
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