hydrocarbons | iTeachChem | Page 1

finite vector Mar 16, 2025, 8:10 AM

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arrange the following compounds in correct order of rate of decarboxylation
methanoic acid
ethanoic
propanoic
benzoic

frigid talonBOT Mar 16, 2025, 8:10 AM

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<@&1227988359910260737>

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finite vector Mar 16, 2025, 8:11 AM

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from my understanding we have to compare stability of carbanion
benzoic acid > metha>eth>prop hona chahiye then

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but given ans is benzoic>eth>prop>meth

dry salmon Mar 16, 2025, 8:15 AM

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finite vector from my understanding we have to compare stability of carbanion benzoic acid > ...

Methanoic acid doesn't have a carbanion. It can't decarboxylate at all, it can only be oxidised.

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It's formic acid na?

finite vector Mar 16, 2025, 8:17 AM

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yepp

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how to compare then

dry salmon Mar 16, 2025, 8:28 AM

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finite vector how to compare then

You got the rest right

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It's just that formic acid can't be decarboxylated at all

finite vector Mar 16, 2025, 8:29 AM

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so its automatically at the end

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?

finite vector Mar 16, 2025, 8:29 AM

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finite vector but given ans is benzoic>eth>prop>meth

what bout this tho

dry salmon Mar 16, 2025, 11:22 AM

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finite vector so its automatically at the end

Yes

finite vector Mar 16, 2025, 12:35 PM

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given ans is wrong then

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?

dry salmon Mar 16, 2025, 2:30 PM

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Given is correct

dry salmon Mar 16, 2025, 2:31 PM

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finite vector given ans is wrong then

Benzoic because resonance stability, then acetic and propanoic based on chain length, then formic because it cannot be decarboxylated in the first place.

finite vector Mar 16, 2025, 2:39 PM

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alr got it

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+solved @dry salmon

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