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iTeachChem

A Study Community for Everyone and Everything. We have weekly sessions on Spirituality, Math and Science! JEE, NEET prep? All doubts are crowdsourced. Hare Krishna!

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Recombinant and inheritance

31st .. no idea whats going on
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Aldehyde ketone 1

Mechanism bta do koi iska
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omdm reaction mechanism doubt

so I was solving this problem in omdm... In omdm a mercurinium ion (non classical) formation takes place. My teacher said that we've to break this from the site where there's more cationic character, determined by inductive and NOT mesomeric. Then in the image I've attached, why do we break from the site where phenyl is attached. doesn't it exhibit -I effect? It is better cuz of resonance, but my teacher told we shouldnt look at that....
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Matrices

3rd question kaise prove kare
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biomolecules

why is it so that manmose is written as D-(+)-Mannose, and gulose is written as D-(-)-Gulose. + aur - sochne mein problem horahi ha. mannose i think ki jitna clockwise rotate hoga utna hi anticlock bcz of its arrangement, but aisa bhi nahi ha

org chem mixed

List-I includes starting materials and reagents of selected chemical reactions. List-II gives structures of compounds that may be formed as intermediate products and/or final products from the reactions of List-I.
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optical isomerism - relation problem

i had a doubt in this problem. now i know that a pos passes through the compounds III and IV. don't they have like a pseudo chiral centre? Like R,r,S and R,s,S (small r and s representing pseudo chiral centre config.)... I've been taught that RrS and RsS are diastereomers. Then why'd they be identical? Unless I have got it wrong entirely......
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ald ket 2

we want to convert an aldehyde into alcohol i) LAH with (C2H5)2O ii) SBH with C2H5OH preference kisko dein?...

Series

S part ni smjj ara kese ayega
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Ald ketones

Elimination hogi kya isme? Vahi aaraha dimag mein to
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