Shweta Thakur posted an Question
November 13, 2020 • 20:35 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Plz explain order in each case h r = ipro r tbu h ch nh, ch nh, nh c

ut the basic strength order NH R-NH, RNH RN 2 3 R Me R CH R = ipro R tBu H CH NH, CH NH, NH C

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    Dinesh khalmaniya 1 best-answer

    solution

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    sir but t in case of methyl + I effect work n

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    to more is group more stabilize the charge

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    therefore. 3>2>1

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    yes, but here all three factors works so we can't directly use only inductive effect

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    you have to remember these orders and reason also given in the explanation

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    ok

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    jese jese size bdta jata he steric factor dominant hota jata he so in case of tbutyl 1>2>3°

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    ok

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    third vala jisme iso propyl lga vo explainkr di

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    NH3 mein inductive effect and hydration energy is minimum I mean zero to isko second position pe kyun liya

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    because 3rd wale case me steric effect dominant hone lg jata he pr itna nhi hota he jesa 4th case me hota he

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    this result based on experiment base so no direct explanation found.

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    ok

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    vase zero hota hai n inductive effect aur hydration energy ammonia msin

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    yes, you are correct shweta pr apn ko experimental base pr chlna hota he

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    reason hr chiz ka he, pr yha pr vo trick kam nhi kregi jo or case me krti he so hm ko ye yaad rkhna hi pdega

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    proper reason me and tbutyl case ka he but C2H5 and iso propyl case me intermediate results obtained hota he

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    ok sir

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    sie

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    sir

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    only in solvation energy nh3 Ka size to chota hai n sbse to ye Jada soluble kyin ni hai

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    ye last main my n aata

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    because NH3 + H+ = NH4+ so ye 4 H bonding bnata he

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    Happy Diwali sir🙂

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    same to you Shweta😀🎉🎉

  • comment-profile-img>
    Priyanshu kumar Best Answer

    check

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    check this shweta

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    ch3 mAin kyin solvation lgaya

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    here only + I effect of ch3 will work sir

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    no in case of methyl and ethyl both inductive and solvation effect works

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    ok

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    if only inductive effect then order 3>2>1>0

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    if only solvation effect then order 0>1>2>3

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    the combined effect shows 2>1>3>0 for Me and 2>3>1>0 for c2h5

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    combined effect main do kyin hai

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    only 2>1>3>0

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    for ethyl group inductive effect is more na...so order gets changed 2>3>1

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    and for methyl 2>1>3

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    but overall combined effect secondary has more basicity

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    nh3 + H+= nh4+ .then 4 water molecules adds to nh4+ molecules...so more hydration energy

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    sir nh3 main zero inductive or zero hydration energy hogi

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    inductive effect to nhi hi honge...and for hydration energy you check like this only for comparison...like 3 water molecules adds to primary amine, 2 to secondary, 1 to tertiary

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    samagh ni aa rha

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    nh3 ki second position pe kyun liya iin isopropyl

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    ye order yaad rakhne parenge shweta

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    pkb values se kuch kuch decide hote hai...but for convenience hmlog order arrange karte hai

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    any doubt shweta

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    sir

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    sir

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