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

IUPAC  name of  is: 

1. 2-Chloro-3-iodo-2-pentene

2. 2-Chloro-3-iodo-3-pentene

3.  2-Iodo-3-chloro-pentene

4.  None of the above

2-butene shows geometrical isomerism due to:

1. Restricted rotation about double bond

2. Free rotation about double bond

3. Free rotation about single bond

4. Chiral carbon

Dihedral angle in staggered form of ethane is:

1. $0°$

2. $120°$

3. $60°$

4. $180°$

Which of the following is most reactive towards electrophilic substitution reaction?

1.		2.
3.		4.

The best method for the separation of naphthalene and benzoic acid from their mixture is:
1. Sublimation
2. Chromatography
3. Crystallisation
4. Distillation

Which amongst the following is the most stable carbocation:
 

1.		2.
3.		4.

The chiral centre is absent in:

1. DCH₂-CH₂-CH₂-Cl

2. CH₃-CHD-CH₂-Cl

3. CH₃-CHCl-CH₂D$\mathrm{ \; }$

4. CH₃-CHOH-CH₂-CH₃

Which one of the following compounds is most acidic:
 

1.		2.
3.		4.	\(\mathrm{Cl}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{OH}\)

IUPAC name of some compounds is given. The incorrect name is:

1.	: 3-Methyl-4-ethylheptane
2.	: 3-Methyl-2-butanol
3.	: 2-Ethyl-3-methylbut-1-ene
4.	\(\mathrm{CH}_3-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}\left(\mathrm{CH}_3\right)_2 \): 4-Methyl-2-pentyne