What are the products obtained from the follo | vedclass

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(B) The reaction involves a secondary alkyl halide reacting with a strong,bulky base,$HC \equiv C^-Na^+$,in diethyl ether $(Et_2O)$.Since the reagent

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(B) The reaction involves a secondary alkyl halide reacting with a strong,bulky base,$HC \equiv C^-Na^+$,in diethyl ether $(Et_2O)$.Since the reagent is a strong base,the elimination reaction $(E2)$ is more favorable than the substitution reaction $(S_N2)$.The elimination product is $1,2-dihydronaphthalene$ (or similar alkene derivative),and the substitution product is the alkynyl derivative.Based on the reaction conditions,the elimination product is the major product $(80\%)$ and the substitution product is the minor product $(20\%)$.Comparing the structures,option $B$ correctly represents the $20\%$ substitution product and $80\%$ elimination product.

What are the products obtained from the following reaction?

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