What is the decreasing order of strength of the bases OH-, NH2-, HC ≡ C- and CH3CH2-? (a) CH3CH2- > NH2- > HC ≡ C- > OH- (b) HC ≡ C-> CH3CH2-> NH2- > OH- (c) OH- >NH2- > HC ≡ C- > CH3CH2- (d) NH2- > HC ≡ C- > OH- > CH3CH2-

Correct answer: (a) CH3CH2- > NH2- > HC ≡ C- > OH- Explanation: Stronger the acid, weaker the conjugate base. Since acid character follows the order H2O > HC ≡ CH > NH3 > CH3 - CH3 (Acid character), the basic character of their conjugate bases decreases in the reverse order, i.e., CH3CH2- > NH2- > HC ≡ C- > OH-

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What is the decreasing order of strength of the bases OH^-, NH2^-, HC ≡ C^- and CH3CH2^-?

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22/01/2022 2:34 pm

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Shilpi98

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What is the decreasing order of strength of the bases OH^-, NH₂^-, HC ≡ C^- and CH₃CH₂^-?

(a) CH₃CH₂^-> NH₂^-> HC ≡ C^-> OH^-

(b) HC ≡ C^-> CH₃CH₂^-> NH₂^-> OH^-

(d) NH₂^-> HC ≡ C^-> OH^-> CH₃CH₂^-

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22/01/2022 2:37 pm

Riya08

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Correct answer: (a) CH₃CH₂^-> NH₂^-> HC ≡ C^-> OH^-

Explanation:

Stronger the acid, weaker the conjugate base. Since acid character follows the order

H₂O > HC ≡ CH > NH₃ > CH₃ - CH₃

(Acid character), the basic character of their conjugate bases decreases in the reverse order, i.e.,

CH₃CH₂^-> NH₂^-> HC ≡ C^-> OH^-

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