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  • 1(current)
Q. No.

The correct order of –I effect is:

1. -NR3+ > -OR  > -F
2. -F > -NR3+ > -OR
3. -NR3+ > -F  > -OR
4. -OR  > -NR3+ > -F
Subtopic:  Electron Displacement Effects |
 68%
Level 2: 60%+
AIPMT - 1998
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Polarisation of electrons in acrolein may be written as:

1.  C+δH2=CH-C-δHO

2.  C-δH2=CH-C+δHO

3.  C-δH2=CH-CH+δO

4.  C+δH2=CH-CHO-δ

Subtopic:  Electron Displacement Effects |
 61%
Level 2: 60%+
AIPMT - 2000
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The correct order of stability is:

1. 1–butene > Trans–2–butene > Cis–2–butene
2. Trans–2–butene > 1–butene > Cis–2–butene
3. Trans–2–butene > Cis–2-butene > 1–butene
4. Cis-2–butene > Trans–2–butene > 1–butene

Subtopic:  Electron Displacement Effects |
 67%
Level 2: 60%+
AIPMT - 2000
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Which amongst the following is the most stable carbocation:
 

1. 2.
3. 4.

Subtopic:  Electron Displacement Effects | Reaction Intermediates ; Preparation & Properties |
 96%
Level 1: 80%+
AIPMT - 2005
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  • 1(current)
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