The correct order of –I effect is:
1. -NR3+ > -OR > -F
2. -F > -NR3+ > -OR
3.-NR3+ > -F > -OR
4. -OR > -NR3+ > -F
Polarisation of electrons in acrolein may be written as:
1.
2.
3.
4.
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 |
Which amongst the following is the most stable carbocation:
1. | 2. | ||
3. | 4. |