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 |
 63%
Level 2: 60%+
AIPMT - 2010
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Which of the options is correct about product (A)?

1. Product is aromatic  

2. Product has a high dipole moment

3. Product has less resonance energy          

4. Both A and B

Subtopic:  Chemical Properties |
 72%
Level 2: 60%+
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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:  Introduction and Physical Properties | Chemical Properties |
 55%
Level 3: 35%-60%
AIPMT - 2010
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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 |
 62%
Level 2: 60%+
AIPMT - 2012
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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 |
 57%
Level 3: 35%-60%
AIPMT - 2014
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A few reactions are given below:

i. \(\small{\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br}+\mathrm{KOH} \rightarrow \mathrm{CH}_3 \mathrm{CH}=\mathrm{CH}_2+\mathrm{KBr}+\mathrm{H}_2 \mathrm{O}}\)
ii.
iii.
Select the reaction type for the above reactions:
(i) (ii) (iii)
1. Elimination Substitution Addition
2. Elimination Substitution Substitution
3. Substitution Addition Addition
4. Elimination Elimination Addition
Subtopic:  Chemical Properties |
 87%
Level 1: 80%+
NEET - 2016
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Consider the reaction,

This reaction will be the fastest in:

1. Ethanol

2. Methanol

3. N, N'-dimethylformamide (DMF)

4. Water

Subtopic:  Mechanism of Reactions | Chemical Properties |
 78%
Level 2: 60%+
NEET - 2016
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Compound among the following that can be used as the halide component in the Friedel-Crafts reaction :

1. Chlorobenzene

2. Bromobenzene

3. Chloroethene

4. Isopropyl chloride

Subtopic:  Chemical Properties | Haloarenes: Directive Influence of Halogen |
 61%
Level 2: 60%+
NEET - 2016
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Products (A) and (B) in the given below reactions, respectively, are:
 

(A) (B)
1.
2.
3.
4.   None of the above
Subtopic:  Introduction and Physical Properties | Chemical Properties |
 58%
Level 3: 35%-60%
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How is m-Bromotoluene prepared?

1. Bromination of toluene
2. Friedel Craft’s reaction of bromobenzene with CH3Cl
3. Bromination of nitrobenzene and subsequent replacement of –NO2 group with an ethyl group
4. Bromination of Aceto–p–toluidine followed by hydrolysis and deamination
Subtopic:  Mechanism of Reactions |
Level 3: 35%-60%
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