When hydrolyzed with aqueous KOH, compounds that undergoes racemization are:

(i)  (ii) CH3CH2CH2Cl
(iii) (iv)
1. (i) and (ii) 2. (ii) and (iv)
3. (iv) only 4. (i) and (iv)

Subtopic:  Chemical Properties | Isomerism & Chirality |
 55%
From NCERT
AIPMT - 2014
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The end product (C) in the below-mentioned reaction is:
\(H_3C-Br\xrightarrow{\bf KCN }A\xrightarrow{ \bf H_3O^+~~}B\xrightarrow[\bf\text{Ether}]{~~LiAlH_4~~}C\)


1. Acetone
2. Methane
3. Acetaldehyde
4. Ethyl alcohol
Subtopic:  Mechanism of Reactions |
 60%
From NCERT
AIPMT - 2012
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Which of the following compounds undergoes nucleophilic substitution reaction most easily?

1. 2.
3. 4.
Subtopic:  Mechanism of Reactions |
 77%
From NCERT
AIPMT - 2011
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Consider the reactions:

(i) \(\small{{(CH_3)}_2CHCH_2Br\ \xrightarrow[]{C_2H_5OH}{(CH_3)}_2CHCH_2OC_2H_5 + HBr}\)    
(ii) \(\small{{(CH_3)}_2CHCH_2Br\ \xrightarrow[]{C_2H_5O^-}{(CH_3)}_2CHCH_2OC_2H_5 + Br^-}\)    

The mechanisms of reactions (i) and (ii) are, respectively:
1. SN2 and SN1
2. SN1 and SN2
3. SN1 and SN1
4. SN2 and SN2
Subtopic:  Mechanism of Reactions |
 52%
From NCERT
AIPMT - 2011
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The correct order of increasing C-X bond reactivity toward nucleophiles among the following is:

I      II     
III \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{X}\) IV \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{X}\)
 
1. I < II < IV < III 2. II < III < I < IV
3. IV < III < I < II 4. III < II < I < IV
Subtopic:  Physical Properties | Chemical Properties |
 52%
From NCERT
AIPMT - 2010
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Which of the following reactions cannot form new carbon-carbon bonds?

1. Reimer-Tiemann reaction

2. Cannizaro reaction

3. Wurtz reaction

4. Friedel-Crafts acylation

Subtopic:  Mechanism of Reactions |
 62%
From NCERT
AIPMT - 2010
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\(C_6H_5CH_2Br \xrightarrow[2.~H_3O^+] {1.Mg,Ether}~\mathrm X, \)
The product 'X' in the above reaction is:
1. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OH} \)
2. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3 \)
3. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{C}_6 \mathrm{H}_5 \)
4. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OCH}_2 \mathrm{C}_6 \mathrm{H}_5\)

Subtopic:  Chemical Properties |
 58%
From NCERT
AIPMT - 2010
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For the following: 
(i) I- 
(ii) Cl- 
(iii) Br- 
The increasing order of nucleophilicity would be:

1. I-<Br-<Cl-

2. Cl-<Br-<I- 

3. I- <Cl-<Br-

4. Br-<Cl-<I-

Subtopic:  Mechanism of Reactions |
 63%
AIPMT - 2007
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