Which of the following statements are true? a) For an acid H-A : the greater the

Question

Which of the following statements are true?
a) For an acid H-A : the greater the electronegativity of A, thestronger the acid HA b) For an acid H-A : the stronger the H-A bond, the strongerthe acid H-A
c) HF is a stronger acid than HCl d) HClO4 is a weaker acid thanHClO2 e) HClO is a stronger acid than HBrO f) For carboxylic acids : the greater the electronegativitiesof the atoms in the carboxyl group, the stronger the acid MORE THAN ONE MAY BECORRECT Which of the following statements are true?
a) For an acid H-A : the greater the electronegativity of A, thestronger the acid HA b) For an acid H-A : the stronger the H-A bond, the strongerthe acid H-A
c) HF is a stronger acid than HCl d) HClO4 is a weaker acid thanHClO2 e) HClO is a stronger acid than HBrO f) For carboxylic acids : the greater the electronegativitiesof the atoms in the carboxyl group, the stronger the acid MORE THAN ONE MAY BECORRECT

Explanation / Answer

a ) False , when the electronegativeity increases ease todonate proton decreases .so acidity decreases b) False , when the bond is strong tendency to loose protonsdecreases. Acidity decreases. c) False , due to the electrostatic attraction in HF ,acidity decreases. d) False , infact  HClO4 isstronger than HClO2 . e) True , Ka for HClO is greater than Ka for HOBr f) False , If an electronegative element is present in thealkyl group of the carboxylic acid then acidity increases. For example : ClCH2COOH.

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