Which one of the following is strongest acid?
Correct answer: A. FCH COOH
- A. FCH COOH
- B. CH3COOH
- C. CICH COOH
- D. C6H5CH,COOH
Explanation
Electronegativity increases the acidity by increasing the ionic character of O-H. Electronegativity decreases in the order F > Cl > Br, and hence the acidic effect also decreases in the same order. Here and overall, fluorine is the most electronegative element. Thus, it is most acidic.
This question appeared on the ETEA MDCAT 2011 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reactivity of Carboxylic Acids
Carboxylic acids show acidic behaviour because their carboxylate ions are resonance-stabilised, and electron-withdrawing groups can change their strength. Reactions include neutralisation, esterification, formation of acid chlorides and amides, reduction, decarboxylation and substitution at the acyl carbon, which differs from the reactions of phenols.
Practise Carboxylic Acids
550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reactivity of Carboxylic Acids questions
Carboxylic acid forms alcohol in the presence of LiAlH4 and the process is:
Carboxylic acid reacts readily with alcohols in the presence of catalytic amounts of mineral acids to yield compounds called
Which one of the following is strongest acid?
Which is the strongest acid?
Which of the following compounds on treatment with NaHCO3 will liberate CO2?
Which one of the following is strongest acid?