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Simun Mishra posted an Question

May 18, 2020 • 14:24 pm

30 points

IIT JAM
Chemistry (CY)

How to know the relative acidic strength of these compounds?

2 Answer(s)

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Simun mishra

ok
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Dinesh khalmaniya 1

propeller shape
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Dinesh khalmaniya 1

hope this will help you 🙏
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Dinesh khalmaniya 1

check the proper explanation..here acidity ii>i
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propelar shape means
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just like fan
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do you have any doubt??
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yes I can't understand about all this ...
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okay, what do you have doubt so i can explain in simply way
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I m confuse on st 2 tell me all about ..like which effects work ...and why ... like who to deil with this type of structures....? can u pls ...help in this
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yes, I'm trying to explain you.. compair both the structures what do you see? in both the structures only one different. there is three phenyl rings attached to one carbon are free in structure i while bonded in 2 position in str ii. so in structure due to bulky size these ring are not in the plane because these are free to rotate so accept propeller shape ( like fan) while in str ii it it planar due to locking of rotation by a bonds in all phenyl rings so negative charge can easily delocalised in all the phenyl rings and stable the compounds. and hence str ii is more acidic than i
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bulky size means
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mean big size
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ok and propelar means
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Suresh khokhar

follow the instructions
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Suman Kumar

Acidic strength means you have to check the stability of the carbanion that will be generated after removing the proton. 2nd one will be more stable. In tri phenyl anion all benzene ring is free to rotate so resonance is little difficult but in 2nd case due to locking of the ring with one another response is quite easy.
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For more details https://youtu.be/pDwPiy46e58. Timing after 25 minutes
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what type of compounds these ...are
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I m not asking about carboanions ... asking about these 2 structure
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Acidic strength of any compound is based on the stability of the anion formed
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More stable the anion is more is the acidity
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pls ...told me about these 2structure I can't understand these structure
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