Which of the following conformations has the highest steric strain? CH3 а. H;C. H O b. CH; Br H H H. ČH: O c. CH; Br. CH; H H. H O d. Br. CH3 H *CH3

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Q: 5. Which of compounds is likely to adopt a planar conformation? Why? .. A. С. D. В.

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Q: BY BY2, hD NOOH Cae) ( Cyclopentane) SM2 он pcC, THE BY BY2 ACOH t'Buok JEBuott E2 Reoction ( dip -…

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A: The trisubstituted conformer contains three substituents on the cyclohexane ring.

Q: . Circle the conformation (as drawn) that will most rapidly undergo E2. A в H3C H Ph Ph Ph CH3 Ph Ph…

A: In E2 elimination reaction anti periplanar beta hydrogen is removed and form alkene

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Q: Rank the following alkenes from most to least stable. А. В. С. D.

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Q: DO-, D0 (excess) Pure Enantiomer Product(s)?

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Q: А. `NH2 + CH3CH2O- B CH3 + H3C H3C

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Q: Which of the following conformers will obtain the highest strain energy? A В C

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Q: Which of the following molecule(s) is(are) achiral? www CH3 CH3 -CH3 CH3

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Q: 36. Which of these formulas is(are) not valid for hexane? A. CH14 B. C6H6 C. C6H16 D.…

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Q: Which chair conformation of trans-1-tert-butyl-4-methylcyclohexane is mo stable? Clearly explain the…

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Q: Which conformation(s) show(s) the bromines in a gauche orientation for 2,3-dibromobutane, viewed…

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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.