Cyanohydrin of which compound gives lactic acid on hydrolysis?

1. Acetone                                 

2. Acetaldehyde

3. Propanal                                 

4. HCHO

Subtopic:  Isomers & Reaction Mechanism |
 68%
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Which of the following is the strongest acid?

1. HCOOH (pKa 3.77)

2. C6H5COOH (pKa 4.22)

3. CH3COOH (pKa 4.71)

4. CH3CH2COOH (pKa 4.88)

Subtopic:  Carboxylic Acids: Preparation & Properties |
 87%
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Which of the following would produce secondary alcohol?

1. C6H5COCH32. H+1. CH3MgBr

2. C6H5COCH32. H+1. LiAlH4

3. C6H5CHO2. H+1. LiAlH4

4. C6H5COOMe2. H+1. LiAlH4

 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 63%
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Product P in the above reaction is -

 

1. 

2. 

3. 

4. 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 78%
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Amongst the following carboxylic acids the strongest acid is:

1. benzoic acid

2. 0-methoxybenzoic acid

3. m-nitrobenzoic acid

4. p-nitrobenzoic acid

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 69%
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The IUPAC name of tartaric acid is:

1. 2,3-dihydroxy butane-1, 4-dioic acid

2. 1,4-dihydroxy butane-2-3-dioic acid

3. butane-1 4-dicarboxylic acid

4. none of the above

Subtopic:  Carboxylic Acids: Preparation & Properties |
 60%
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The IUPAC name of crotonaldehyde is:

1. But-2-en-1-al

2. Prop-2-enal

3. 4-Methylpent-3-en-2-one

4. None of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Benzene sulphonic acid on treating with P2O5 gives:

1. salicylic acid 

2. benzoic acid

3. acid anhydride

4. sodium benzoate

 

Subtopic:  Carboxylic Acids: Preparation & Properties |
 52%
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Oxalic acid on treatment with conc. H2SO4 gives:

1. CO + H2O2                           

2.  H2O +CO+CO2

3. HCOOH + CO2                       

4.  HCOOH + CO2 +O2

Subtopic:  Carboxylic Acids: Preparation & Properties |
 58%
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Aldehydes and ketones will not form crystalline derivatives with                   

1. sodium bisulphite

2. phenyl hydrazine

3. semicarbazide hydrochloride

4. dihydrogen sodium phosphate

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 57%
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