The intermediate compound 'X' in the following chemical reaction is :

1.
2.
3.
4.

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 79%
From NCERT
NEET - 2021
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The product formed in the following chemical reaction is :

 

1. 2.
3. 4.
Subtopic:  Name Reaction |
 61%
From NCERT
NEET - 2021
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Match List-I with List-II.
List-I (Substrates of reactions) List II (Name of reactions)
(a).  (i). Hell-Volhard-
Zelinsky
reaction
(b).  (ii). Gattermann-
Koch
reaction
(c).  \(\small{R-{CH_2}-OH + RCOOH \xrightarrow{Conc.\ H_2SO_4}}\) (iii). Haloform
reaction
(d). (iv). Esterification

Choose the correct answer from the options given below:

(a). (b). (c). (d).
1. (i). (iv). (iii). (ii).
2. (ii). (iii). (iv). (i).
3. (iv). (i). (ii). (iii).
4. (iii). (ii). (i). (iv).
Subtopic:  Carboxylic Acids: Preparation & Properties |
 87%
From NCERT
NEET - 2021
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Consider the below reaction and identify the missing reagent/chemical.
\(\mathrm{CH_{3}CH_{2}COO^{-}Na^{+} \ \xrightarrow[\textbf{Heat}]{\textbf{NaOH, + ? }} \ CH_{3}CH_{3} \ + \ Na_{2}CO_{3}}\)

1. CaO

2. DIBAL-H

3. B2H6

4. Red Phosphorus

Subtopic:  Carboxylic Acids: Preparation & Properties |
 73%
From NCERT
NEET - 2021
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A and B in the following reactions are:

1.
2.
3.
4.
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 73%
From NCERT
AIPMT - 2003
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When m-chlorobenzaldehyde is treated with 50% KOH solution, the product(s) obtained is (are):

1.
2.
3.
4.
Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 80%
From NCERT
AIPMT - 2003
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In a set of the given reactions, acetic acid yielded a product C.

\(\mathrm{CH_3COOH+PCl_5\rightarrow A\xrightarrow[Anh.AlCl_3]{C_6H_6}B\xrightarrow[ether]{C_2H_5MgBr}C}\)
Product C would be:

1. CH3CH(OH)C2H5
2. CH3COC6H5
3. CH3CH(OH)C6H5
4.
Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 82%
From NCERT
AIPMT - 2003
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In the reaction below, an asymmetric centre is generated. The acid obtained in the final product would be:

\(CH_3CHO+HCN\rightarrow CH_3CH(OH)CN\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\downarrow{\bf{H.OH}}\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~CH_3CH(OH)COOH~\)

1. 100 % R-isomer

2. 100% S-isomer

3. 50% R + 50% S-isomer

4. 20% R + 80% S-isomer

Subtopic:  Isomers & Reaction Mechanism | Carboxylic Acids: Preparation & Properties |
 83%
From NCERT
AIPMT - 2003
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Product 'P' in the above reaction is: 

1. 2.
3. 4.
Subtopic:  Carboxylic Acids: Preparation & Properties |
 85%
From NCERT
AIPMT - 2002
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In the following reaction, product 'P' is:

1. RCH2OH

2. RCOOH

3. RCHO

4. RCH3

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 90%
From NCERT
AIPMT - 2002
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