which of the following statements are true?

Question

which of the following statements are true?


a) For an acid H-A : the greater the electronegativity of A, the stronger the acid HA

b) For an acid H-A : the stronger the H-A bond, the stronger the acid H-A

c) HBr is a stronger acid than HF

d) H2SO3 is a weaker acid than H2SO4

e) HIO is a stronger acid than HBrO

f) For carboxylic acids : the smaller the electronegativities of the atoms in the group bonded to the carboxyl group, the stronger the acid


I Tried:
1. ACDEF
2. ADF
3. D

Answer 1

Well, try a, c, d.

Answer 2

true c, d, e,

a) is false since acidity is defined as the ability to release proton so the greater the electronegativity of A the difficult to release H
b) is also false since the acidity measures the ablity of H to break from A, so the stronger the bond the difficult to realease H

f? is false since less electronegative element polarize the carboxylic acid less than stronger one

C is true since Br is less electronegative than F

Answer 3

A, B and D. I "think" F is true but am not sure.

All of them are based on the elctrons being away from the Hydrogen atom longer.

Answer 4

dunno