The dihedral angle of the least stable conformer of ethane is:

Which of the following is a free radical substitution reaction?

1. Benzene with Br₂/AlCl₃

2. Acetylene with HBr

3. Methane with Br₂/hv

4. Propene with HBr/(C₆H₅COO)₂

Which of the following statement(s) is/are correct about the elimination reaction of 2-Bromopentane to form pent-2-ene:
(a) $\mathrm{\beta }$-Elimination reaction
(b) Follows Zaitsev rule
(c) Dehydrohalogenation reaction
(d) Dehydration reaction

The incorrect IUPAC name among the following is:

1.
2.
3.
4.

Match the bond line structures of hydrocarbons given in List-I with the corresponding boiling points given in List-II. 

	List-I (Compound)		List-II (Boiling point in K)
(a)		(i)	300.9
(b)		(ii)	282.5
(c)		(iii)	309.1
(d)		(iv)	341.9

The major product of the following chemical reaction is:

1.
2.
3.
4.

Which of the following alkane cannot be made in good yield by Wurtz reaction?

Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction?

1.		2.
3.		4.