QUESTION 2 a) Draw Newman projections of the three eclipsed conformations of 2-bromo-3-chlorobutane sightings at C2 and C3. State the least stable conformation. b) Identify the least stable chair conformation of cis-1-bromo-3-ethylcyclohexane. Justify your answer.

Q: 1. xylenes, heat Meo. 2. PCY3 Rú: Ph PCys (1 mol %) CH,Cl2

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Q: None

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Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.