A mixture of benzaldehyde and formaldehyde on heating with aqueous (conc.)NaOH       solution gives

1. benzyl alcohol and sodium formate

2. sodium benzoate and methyl alcohol

3. sodium benzoate and sodium formate

4. none of these

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 58%
Level 3: 35%-60%
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For the reaction:

Which reagent will be appropriate for the above conversion?

1. Zn-Hg/HCl

2. NH2-NH2/OH-

3. LiAlH4/H

4. HI/P

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 52%
Level 3: 35%-60%
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Identify (X) in the given sequential reaction.

1. CH3OH

2. Ethyl alcohol

3. Methyl cyanide

4. tert-Butyl alcohol

Subtopic:  Isomers & Reaction Mechanism |
 89%
Level 1: 80%+
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Phenolphthalein is produced on heating phthalic anhydride and conc. sulphuric acid with

1. Salicylic acid

2. Phenol

3. Phenacetin

4. Phenanthrene

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 60%
Level 2: 60%+
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The compound Y in the above sequence of reactions is:

 

1. 1-Phenylethene

2. 2-Phenyl-2-propanol

3. Acetophenone

4. Benzaldehyde

Subtopic:  Isomers & Reaction Mechanism |
 72%
Level 2: 60%+
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In the following reaction:

The structure of the major product 'X' is

(1)

(2)

(3)

(4)

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 54%
Level 3: 35%-60%
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The compound A can be exclusively oxidized into ​​​B by:
 

1. NaCN, followed by hydrolysis

2. NaOI, followed by H3O+

3. KMnO4(hot), followed by hydrolysis

4. K2Cr2O7, followed by H3O+

Subtopic:  Carboxylic Acids: Preparation & Properties |
Level 3: 35%-60%
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KMnO4Y

In the above reaction, X and Y are:

1. Identical

2. Homologous

3. Structural Isomers

4. Stereoisomers

Subtopic:  Carboxylic Acids: Preparation & Properties |
Level 3: 35%-60%
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\(\xrightarrow[\left(ii\right) H^{+} / H_{2} O]{\left(i\right) NaOH / 100^{\circ}}\)

Major Product is:

1. 

2.

 

3.

4.

Subtopic:  Isomers & Reaction Mechanism |
Level 3: 35%-60%
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Which compound is most reactive towards nucleophilic addition?

1. CH3CHO

2. PhCOCH3

3. PhCOPh

4. CH3COCH3

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 77%
Level 2: 60%+
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