CI H. CI H CH3 HCI HCI H3C CI HYH CH3 H H. HYH H. H. H C 3. a Gauche conformer 16. has the same strain energy with B Answer: Answer: 4. has the lowest strain energy 17. has 180° dihedral angle between C-Cl and C-CH3 Answer: Answer: 5. the least stable conformer 18. has the most steric and torsional strains Answer: Answer:

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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.