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Which of the following is the correct decreasing order of acidic strength of [1988]
(i) methanoic acid (ii) ethanoic acid
(iii) propanoic acid (iv) butanoic acid.
  • a)
    (i) > (ii) > (iii) > (iv)
  • b)
    (ii) > (iii) > (ii) > (i)
  • c)
    (i) > (iv) > (iii) > (ii)
  • d)
    (iv) > (i) > (iii) > (ii)
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following is the correct decreasing order of acidic stren...
An electron releasing substituent (+I effect) intensity the negative charge on the anion resulting in the decrease of stability and thus decreases the acidity of the acid. Hence acidic character decreases as the + I-effect of the alkyl group increases as
CH3 < CH3CH2 < CH3CH2CH2
< CH3CH2CH2CH2
Hence the order of acidic strength becomes:
(i) > (ii) > (iii) > (iv)
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Most Upvoted Answer
Which of the following is the correct decreasing order of acidic stren...
The correct decreasing order of acidic strength is:

(iv) butanoic acid > (iii) propanoic acid > (ii) ethanoic acid > (i) methanoic acid

This is because the acidity of carboxylic acids increases with the number of carbon atoms in the chain, due to the increasing electron-withdrawing effect of the carbon chain on the carboxyl group. Therefore, butanoic acid is the strongest acid among the given options, followed by propanoic acid, ethanoic acid, and methanoic acid.
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Which of the following is the correct decreasing order of acidic strength of [1988](i) methanoic acid (ii) ethanoic acid(iii) propanoic acid (iv) butanoic acid.a)(i) > (ii) > (iii) > (iv)b)(ii) > (iii) > (ii) > (i)c)(i) > (iv) > (iii) > (ii)d)(iv) > (i) > (iii) > (ii)Correct answer is option 'A'. Can you explain this answer?
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Which of the following is the correct decreasing order of acidic strength of [1988](i) methanoic acid (ii) ethanoic acid(iii) propanoic acid (iv) butanoic acid.a)(i) > (ii) > (iii) > (iv)b)(ii) > (iii) > (ii) > (i)c)(i) > (iv) > (iii) > (ii)d)(iv) > (i) > (iii) > (ii)Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following is the correct decreasing order of acidic strength of [1988](i) methanoic acid (ii) ethanoic acid(iii) propanoic acid (iv) butanoic acid.a)(i) > (ii) > (iii) > (iv)b)(ii) > (iii) > (ii) > (i)c)(i) > (iv) > (iii) > (ii)d)(iv) > (i) > (iii) > (ii)Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is the correct decreasing order of acidic strength of [1988](i) methanoic acid (ii) ethanoic acid(iii) propanoic acid (iv) butanoic acid.a)(i) > (ii) > (iii) > (iv)b)(ii) > (iii) > (ii) > (i)c)(i) > (iv) > (iii) > (ii)d)(iv) > (i) > (iii) > (ii)Correct answer is option 'A'. Can you explain this answer?.
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