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Divya posted an Question
September 04, 2020 • 18:06 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Acidic character

sir is NH3+ more elctronegative or -COOH in the 2 compounds

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  • Amol ashok pawar best-answer

    Nh3+ will more easily lose its proton than acid ch3nh3+>ch3cooh. First of all, anything with a positive charge is a stronger acid, because its conjugate base is a neutral/stable base.

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    thank u so much

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    Priyanshu kumar Best Answer

    Acetic acid is more acidic here

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    As their conjugate base acetate ion is most stable...due to two equivalent resonating structures

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    sir in the two which shows more -I effect

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    Methyl ammonium ion has pka value nearly 10.7 and acetic acid has pka value 4.7

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    - I effect of cation is always more than neutral

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    Nh3+ has more -I effect than COOH

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    got this divya??

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    sir then NH3+ has more a acidic nature than COOH right

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    no here...Acetate ion is more resonance stabilised

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    Two equivalent resonating structures forms in case of acetate ion

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    sir that means we have to give more preference to resonance than -I effect right

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    resonance effect is more stronger than inductive effect

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    see pka value of ch3nh3+

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    got it sir

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    thank you so much

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    welcome😊

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    you can compare pka values too

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    ok sir

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    sir still 2 more questions can I ask now

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    yes ask

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