Which one is most reactive towards SN1 reaction?

1. C6H5CH(C6H5)Br

2. C6H5CH(CH3)Br

3. C6H5C(CH3)(C6H5)Br

4. C6H5CH2Br

Subtopic:  SN1 & SN2 Reactions |
 70%
From NCERT
AIPMT - 2010
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Which of the following reactions is an example of a nucleophilic substitution reaction?
1. RX + KOH → ROH + KX
2. 2RX + 2Na →R — R + 2NaX
3. RX + H2→RH + HX
4. RX + Mg →RMg X
Subtopic:  SN1 & SN2 Reactions |
 79%
From NCERT
AIPMT - 2009
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NEET 2025 - Target Batch
Hints
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In a SN2 substitution reaction of the type 
\(\mathrm{R}-\mathrm{Br}+\mathrm{Cl}^{-} \xrightarrow{\mathrm{DMF}} \mathrm{R}-\mathrm{Cl}+\mathrm{Br}^{-}\)

one of the following that has the highest relative rate is:
 

1. \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2 \mathrm{Br}\) 2.
3. 4. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Br}\)

Subtopic:  SN1 & SN2 Reactions |
 66%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch