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Among the following acids which has the lowest pKa value?
- a)CH3CH2COOH
- b)(CH3)2 CH - COOH
- c)HCOOH
- d)CH3COOH
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Among the following acids which has the lowest pKa value?a)CH3CH2COOHb...
pKa = –log Ka; HCOOH is the strongest acid and hence it has the highest Ka or lowest pKa value.
Most Upvoted Answer
Among the following acids which has the lowest pKa value?a)CH3CH2COOHb...
Explanation:
pKa values are a measure of the acidity of a compound. The lower the pKa value, the stronger the acid. In this question, we need to determine which of the given acids has the lowest pKa value.
HCOOH has the lowest pKa value among the given acids.
Reason:
The pKa of formic acid (HCOOH) is 3.75. This is the lowest pKa value among the given acids. The pKa of acetic acid (CH3COOH) is 4.76, the pKa of propionic acid (CH3CH2COOH) is 4.87, and the pKa of isobutyric acid ((CH3)2CH-COOH) is 4.82. Therefore, HCOOH has the lowest pKa value among the given acids.
Conclusion:
Hence, the correct option is (c) HCOOH, which has the lowest pKa value among the given acids.
pKa values are a measure of the acidity of a compound. The lower the pKa value, the stronger the acid. In this question, we need to determine which of the given acids has the lowest pKa value.
HCOOH has the lowest pKa value among the given acids.
Reason:
The pKa of formic acid (HCOOH) is 3.75. This is the lowest pKa value among the given acids. The pKa of acetic acid (CH3COOH) is 4.76, the pKa of propionic acid (CH3CH2COOH) is 4.87, and the pKa of isobutyric acid ((CH3)2CH-COOH) is 4.82. Therefore, HCOOH has the lowest pKa value among the given acids.
Conclusion:
Hence, the correct option is (c) HCOOH, which has the lowest pKa value among the given acids.
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Among the following acids which has the lowest pKa value?a)CH3CH2COOHb)(CH3)2 CH - COOHc)HCOOHd)CH3COOHCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Among the following acids which has the lowest pKa value?a)CH3CH2COOHb)(CH3)2 CH - COOHc)HCOOHd)CH3COOHCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Among the following acids which has the lowest pKa value?a)CH3CH2COOHb)(CH3)2 CH - COOHc)HCOOHd)CH3COOHCorrect answer is option 'C'. Can you explain this answer?.
Among the following acids which has the lowest pKa value?a)CH3CH2COOHb)(CH3)2 CH - COOHc)HCOOHd)CH3COOHCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Among the following acids which has the lowest pKa value?a)CH3CH2COOHb)(CH3)2 CH - COOHc)HCOOHd)CH3COOHCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Among the following acids which has the lowest pKa value?a)CH3CH2COOHb)(CH3)2 CH - COOHc)HCOOHd)CH3COOHCorrect answer is option 'C'. Can you explain this answer?.
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