1.

(A) S_N2 reactions are exothermic (R) S_N2 reactions are thermochemically favored by stronger nucleophiles

Answer»

Both (A) and (R) are correct and (R) is the correct EXPLANATION of (A) 
Both (A) and (R) are correct but (R) is not the correct explanation of (A) 
(A) is TRUE but (R) is False 
Both (A) and (R) are false 

Answer :A


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