For the following compounds, what is the correct sequence of the bond enthalpy of the "C-X" bond?

1. CH3-F < CH3-Cl > CH3-Br > CH3-I

2. CH3-Cl > CH3-F > CH3-Br > CH3-I

3. CH3-F < CH3-Cl < CH3-Br < CH3-I

4. CH3-F > CH3-Cl > CH3-Br > CH3-I

Subtopic:  Physical Properties | Chemical Properties |
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The major product formed in the dehydrohalogenation reaction of 2-Bromo pentane is Pent-2-ene. This product formation is based on:

1. Hofmann Rule

2. Huckel's Rule

3. Saytzeff's Rule

4. Hund's Rule

Subtopic:  Chemical Properties |
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A compound that does not undergo SN1 reaction with OH- is-

1.  CH2=CH-CH2Cl 2. (CH3)3CCl 
3. 4.

Subtopic:  Chemical Properties |
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Among the following, which hydrolysis reaction occurs at the slowest rate?

1. 
2. 
3. 
4. 

Subtopic:  Mechanism of Reactions |
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Which of the following compounds 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 |
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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 |
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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 |
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Which of the following statements about the SN1 reaction is correct?

1. 100 % racemisation
2. Inversion more than retention leading to partial racemisation
3. 100 % retention
4. 100 % Inversion

Subtopic:  Mechanism of Reactions |
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Which of the following compounds, when hydrolyzed with aqueous KOH, undergoes racemization?

(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 |
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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 |
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