Identify the chiral molecule from the following.
a) 1-bromobutane
b) "1,1" -dibromobutane
c) "2,3" -dibromobutane
d) "2" -bromobutane.

Convert : a. 1- Bromobutane to 2- bromobutane b. 1- Bromobutane to 1,2- dibromobutane c. 1- Chlorobutane to 1- bromobutane ltbr. d.

Explain the stereochemistry of the products from E2 dehalogenation with I^(Θ) of the following. a. (i) Meso -2-3- dibromobutane and (ii) S,S-2,3- dibromo - butane. b. E2- dehydrobromination of (i) R,R-2,3- dibromobutane and (ii) meso -(R,S)-2,3- debromobutane c. From which conformation of bromocyclohexane in the E2 dehydrobromination is best achieved.

Prepare pentan -1-ol from (a) Pent-1-1ene, (b) 1-Bromopentane, (c ) 1-Bromobutane and (d ) 1-Bromopropane.

The most stable conformation of 2, 3-dibromobutane is -

Which is the correct increasing order of boiling points of the following compounds ? 1-bromomethane, 1-bromobutane, 1-chlorobutane, Butane

The reagent used in the conversion of 1-butanol to 1-bromobutane is :