Home work 1 Roll No. DOS:10/9/2012 CHE-153 Orga

Home work 1 Roll No. DOS:10/9/2012 CHE-153 Organic Chemistry M.M=20Q1. Does the absence of chiral carbon atoms always make a molecule optically inactive and Explain with example. [2]Q2. Explain Torsinal strain and with example? [2]Q3. Draw the structure of [4]a) cis and trans 12-dimethylcyclohexane b) cis and trans 14-dimethylcyclohexane.Q4. Tell whether the two structures in each pair represent enantiomers diastereoisomer or identical: [2]Q-6 Give RS designation? [2] Q.7 Discuss chair boat and twisted boat conformation of cyclohexane by giving Newman projection. [4]Q.8 To single methyl group on a cyclohexane ring assumes the equatorial position preferentially. Assign arguments for the above statement. [4]
Attachments: