Question

Account for the following:

1) 2_flurobutanoic acid is stronger than 3_fluorobutanoic acid

2) CH3CHO is more reactive than CH3COCH3 towards reaction with HCN.

Answer 1

1)because of +I effect

Answer 2

1 for first the f is most electronegative near to the carbonyl group when hplus leaves then to stabilize it the f fuction as it develops a positive charge and stabiliz the negative one .