01. Resonance
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GENERAL ORGANIC CHEMISTRY

231751 The molecule/molecules that has/have delocalised lone pair (s) of electrons is/are

1 I, II and III
2 I, II and IV
3 I and III
4 only III
WB JEET-2019
GENERAL ORGANIC CHEMISTRY

231752 \(\text{C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{Cl}\xrightarrow[\Delta ]{\text{ aq}\text{.}\,\overset{-}{\mathop{\text{O}}}\,\text{H }}\text{ C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{OH}\)
Which information below regarding this reaction is applicable?

1 It follows $\mathrm{S}_{\mathrm{N}} 2$ pathway, because it is a primary alkyl chloride
2 It follows $\mathrm{S}_{\mathrm{N}} 1$ pathway, because the intermediate carbocation is resonance stabilised
3 $\mathrm{S}_{\mathrm{N}} 1$ pathway is not followed because the intermediate carbocation is destabilised by $-l$ effect of oxygen
4 A mixed $\mathrm{S}_{\mathrm{N}} 1$ and $\mathrm{S}_{\mathrm{N}} 2$ pathway is followed
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231753 For the following carbocations, the correct order of stability is
$\text { I. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{COCH}_{3} \quad \text { II. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{OCH}_{3}$
$\text { III. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{CH}_{3}$

1 III $<$ II $<$ I
2 II $<$ I $<$ III
3 I $<$ II $<$ III
4 I $<$ III $<$ II
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231663 Which one of the following compounds will be most readily dehydrated?

1 original image
2 original image
3 original image
4 original image
VITEEE- 2012
NEET DIGITAL LIBRARY
GENERAL ORGANIC CHEMISTRY

231751 The molecule/molecules that has/have delocalised lone pair (s) of electrons is/are

1 I, II and III
2 I, II and IV
3 I and III
4 only III
WB JEET-2019
GENERAL ORGANIC CHEMISTRY

231752 \(\text{C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{Cl}\xrightarrow[\Delta ]{\text{ aq}\text{.}\,\overset{-}{\mathop{\text{O}}}\,\text{H }}\text{ C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{OH}\)
Which information below regarding this reaction is applicable?

1 It follows $\mathrm{S}_{\mathrm{N}} 2$ pathway, because it is a primary alkyl chloride
2 It follows $\mathrm{S}_{\mathrm{N}} 1$ pathway, because the intermediate carbocation is resonance stabilised
3 $\mathrm{S}_{\mathrm{N}} 1$ pathway is not followed because the intermediate carbocation is destabilised by $-l$ effect of oxygen
4 A mixed $\mathrm{S}_{\mathrm{N}} 1$ and $\mathrm{S}_{\mathrm{N}} 2$ pathway is followed
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231753 For the following carbocations, the correct order of stability is
$\text { I. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{COCH}_{3} \quad \text { II. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{OCH}_{3}$
$\text { III. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{CH}_{3}$

1 III $<$ II $<$ I
2 II $<$ I $<$ III
3 I $<$ II $<$ III
4 I $<$ III $<$ II
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231663 Which one of the following compounds will be most readily dehydrated?

1 original image
2 original image
3 original image
4 original image
VITEEE- 2012
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GENERAL ORGANIC CHEMISTRY

231751 The molecule/molecules that has/have delocalised lone pair (s) of electrons is/are

1 I, II and III
2 I, II and IV
3 I and III
4 only III
WB JEET-2019
GENERAL ORGANIC CHEMISTRY

231752 \(\text{C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{Cl}\xrightarrow[\Delta ]{\text{ aq}\text{.}\,\overset{-}{\mathop{\text{O}}}\,\text{H }}\text{ C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{OH}\)
Which information below regarding this reaction is applicable?

1 It follows $\mathrm{S}_{\mathrm{N}} 2$ pathway, because it is a primary alkyl chloride
2 It follows $\mathrm{S}_{\mathrm{N}} 1$ pathway, because the intermediate carbocation is resonance stabilised
3 $\mathrm{S}_{\mathrm{N}} 1$ pathway is not followed because the intermediate carbocation is destabilised by $-l$ effect of oxygen
4 A mixed $\mathrm{S}_{\mathrm{N}} 1$ and $\mathrm{S}_{\mathrm{N}} 2$ pathway is followed
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231753 For the following carbocations, the correct order of stability is
$\text { I. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{COCH}_{3} \quad \text { II. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{OCH}_{3}$
$\text { III. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{CH}_{3}$

1 III $<$ II $<$ I
2 II $<$ I $<$ III
3 I $<$ II $<$ III
4 I $<$ III $<$ II
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231663 Which one of the following compounds will be most readily dehydrated?

1 original image
2 original image
3 original image
4 original image
VITEEE- 2012
For More Updates join with Us
GENERAL ORGANIC CHEMISTRY

231751 The molecule/molecules that has/have delocalised lone pair (s) of electrons is/are

1 I, II and III
2 I, II and IV
3 I and III
4 only III
WB JEET-2019
GENERAL ORGANIC CHEMISTRY

231752 \(\text{C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{Cl}\xrightarrow[\Delta ]{\text{ aq}\text{.}\,\overset{-}{\mathop{\text{O}}}\,\text{H }}\text{ C}{{\text{H}}_{3}}-\text{O}-\text{C}{{\text{H}}_{2}}-\text{OH}\)
Which information below regarding this reaction is applicable?

1 It follows $\mathrm{S}_{\mathrm{N}} 2$ pathway, because it is a primary alkyl chloride
2 It follows $\mathrm{S}_{\mathrm{N}} 1$ pathway, because the intermediate carbocation is resonance stabilised
3 $\mathrm{S}_{\mathrm{N}} 1$ pathway is not followed because the intermediate carbocation is destabilised by $-l$ effect of oxygen
4 A mixed $\mathrm{S}_{\mathrm{N}} 1$ and $\mathrm{S}_{\mathrm{N}} 2$ pathway is followed
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231753 For the following carbocations, the correct order of stability is
$\text { I. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{COCH}_{3} \quad \text { II. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{OCH}_{3}$
$\text { III. }{ }^{\oplus} \mathrm{CH}_{2}-\mathrm{CH}_{3}$

1 III $<$ II $<$ I
2 II $<$ I $<$ III
3 I $<$ II $<$ III
4 I $<$ III $<$ II
WB JEET-2020
GENERAL ORGANIC CHEMISTRY

231663 Which one of the following compounds will be most readily dehydrated?

1 original image
2 original image
3 original image
4 original image
VITEEE- 2012