Which of the following is the weakest acid? A Phenol ( K a = 1 . 3 × 1 0 − 1 0 ) B Hydrocyanic acid ( K a = 4 . 9 × 1 0 − 1 0 ) C Acetic acid ( K a = 1 . 8 × 1 0 − 1 0 ) D Benzoic acid ( K a = 6 . 5 × 1 0 − 1 0 )

Question

Which of the following is the weakest acid? A Phenol ( K a ​ = 1 . 3 × 1 0 − 1 0 ) B Hydrocyanic acid ( K a ​ = 4 . 9 × 1 0 − 1 0 ) C Acetic acid ( K a ​ = 1 . 8 × 1 0 − 1 0 ) D Benzoic acid ( K a ​ = 6 . 5 × 1 0 − 1 0 )

Vikas TU · Answer

Dear student The weak acid among following is Phenol Because it is having least Ka value , among all four. So correct option is A. Hope this will help Good Luck

ankit singh · Answer

please go through the solution solve by askiitians faculty ankit singh A large Ka value indicates a strong acid because it means the acid is largely dissociated into its ions. A small Ka value means little of the acid dissociates, then it is a weak acid. ∴ Phenol is the weakest acid. manir bhopal all the best for your futurew endutrewd

adilakshmigogada 27 · Answer

A large Ka value indicates a strong acid because it means the acid is largely dissociated into its ions. A small Ka value means little of the acid dissociates, then it is a weak acid. ∴ Phenol is the weakest acid. manir bhopal all the best for your futurew endutrewd

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Which of the following is the weakest acid? A Phenol ( K a = 1 . 3 × 1 0 − 1 0 ) B Hydrocyanic acid ( K a = 4 . 9 × 1 0 − 1 0 ) C Acetic acid ( K a = 1 . 8 × 1 0 − 1 0 ) D Benzoic acid ( K a = 6 . 5 × 1 0 − 1 0 )

Which of the following is the weakest acid?
A
Phenol (Ka=1.3×10−10)
B
Hydrocyanic acid (Ka=4.9×10−10)
C
Acetic acid (Ka=1.8×10−10)
D
Benzoic acid (Ka=6.5×10−10)

Which of the following is the weakest acid?

Phenol (Ka=1.3×10−10)

Hydrocyanic acid (Ka=4.9×10−10)

Acetic acid (Ka=1.8×10−10)

Benzoic acid (Ka=6.5×10−10)

3 Answers

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Which of the following is the weakest acid? A Phenol ( K a ​ = 1 . 3 × 1 0 − 1 0 ) B Hydrocyanic acid ( K a ​ = 4 . 9 × 1 0 − 1 0 ) C Acetic acid ( K a ​ = 1 . 8 × 1 0 − 1 0 ) D Benzoic acid ( K a ​ = 6 . 5 × 1 0 − 1 0 )

Which of the following is the weakest acid?APhenol (Ka​=1.3×10−10)BHydrocyanic acid (Ka​=4.9×10−10)CAcetic acid (Ka​=1.8×10−10)DBenzoic acid (Ka​=6.5×10−10)

Which of the following is the weakest acid?

Phenol (Ka​=1.3×10−10)

Hydrocyanic acid (Ka​=4.9×10−10)

Acetic acid (Ka​=1.8×10−10)

Benzoic acid (Ka​=6.5×10−10)

3 Answers

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Which of the following is the weakest acid? A Phenol ( K a = 1 . 3 × 1 0 − 1 0 ) B Hydrocyanic acid ( K a = 4 . 9 × 1 0 − 1 0 ) C Acetic acid ( K a = 1 . 8 × 1 0 − 1 0 ) D Benzoic acid ( K a = 6 . 5 × 1 0 − 1 0 )

Which of the following is the weakest acid?
A
Phenol (Ka=1.3×10−10)
B
Hydrocyanic acid (Ka=4.9×10−10)
C
Acetic acid (Ka=1.8×10−10)
D
Benzoic acid (Ka=6.5×10−10)

Phenol (Ka=1.3×10−10)

Hydrocyanic acid (Ka=4.9×10−10)

Acetic acid (Ka=1.8×10−10)

Benzoic acid (Ka=6.5×10−10)