A) Which alkyl halide will produce only one alkene product when heated with sodi

Question

A) Which alkyl halide will produce only one alkene product when heated with sodium methoxide in methanol?

a) 2-chloro-4-methylpentane b) 2-chloro-3-ethylpentane c) 3-chloro-2-methylpentane d) 2-chloro-2-methylpentane e) 3-chloro-3-ethylpentane

B) When (2S,3R)-2-bromo-3-methylpentane undergoes reaction with sodium methoxide in methanol, the product is

a) (E)-3-methyl-2-pentene b) 2-methyl-1-pentene c) 3-methyl-1-pentene d) (Z)-3-methyl-2-pentene e) 2-methyl-2-pentene

C) Which alkene is the major product when 2-bromo-2-methylpentane is heated with potassium tert-butoxide in tert-butanol?

a) (Z)-2-methyl-3-pentene b) 2-methyl-4-pentene c) (E)-2-methyl-3-pentene d) 2-methyl-2-pentene e) 2-methyl-1-pentene

D) When (1R,2S)-1-bromo-2-methylcyclohexane is heated with sodium methoxide in methanol, the major product is

a) (S)-3-methylcyclohexene b) (S)-4-methylcyclohexene c) (R)-3-methylcyclohexene d) (R)-4-methylcyclohexene e) 1-methylcyclohexene

E) When the compound shown below undergoes E1 elimination, base-abstraction of a hydrogen ion from the initially formed carbocation forms the minor product

F) When the compound shown below undergoes E1 elimination, the initially formed carbocation undergoes a hydride shift to preferentially form

G) When (2S,3R)-2,3-dibromohexane undergoes reaction with sodium iodide in acetone, the product is

a) (E)-3-hexene b) 1-hexene c) (Z)-2-hexene d) (Z)-3-hexene e) (E)-2-hexene

H) When the compounds shown below undergoes E1 elimination, the initially formed carbocation undergoes a hydride shift to preferentially form a second carbocation. Methoxide base-abstraction from this second carbocation forms the products

I) Which alkene is the major product when 2-bromo-2-methylpentane is heated with sodium ethoxide in ethanol?

a) (Z)-2-methyl-3-pentene b) 2-methyl-4-pentene c) 2-methyl-2-pentene d) (E)-2-methyl-3-pentene e) 2-methyl-1-pentene

J) When (2S,3S)-2-bromo-3-methylpentane undergoes reaction with sodium methoxide in methanol, the product is

a) (E)-3-methyl-2-pentene b) (Z)-3-methyl-2-pentene c) 2-methyl-1-pentene d) 3-methyl-1-pentene e) 2-methyl-2-pentene

Explanation / Answer

a- answer is e.

If see the structure of the molecule i have make the carbon in bold which are going to eliminate will give the same single product

CH3CH2ClC(CH2CH3)CH2CH3

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