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CBSE Class 12-science Answered

how to carry diff conversions as aniline to 4-nitrobenzene and other conversions plz help....its urg
Asked by | 22 Jun, 2008, 12:27: PM
answered-by-expert Expert Answer

ANILINE TO NITROBENZENE:

                            NaNO2-HCl            HBF4                                   NANO2

           C6H5NH2 -----    C6H5N2Cl -----------        C6H5N2BH4 ------------    C6H5NO2                                                                                                               Cu 
        
 
Answered by | 06 Jul, 2008, 01:26: PM

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CBSE 12-science - Chemistry
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Asked by shwetayaligar205 | 07 Jul, 2022, 08:13: PM
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sir/madam, this doubt will be lenghty. request peace reading. the doubt is w.r.t chapter Amines; to be specific it is w.r.t basicity of amines. in the topic of the comparision of the basic character of alkylamines with ammonia,  the order of basicity of amines is tertiary> secondary> primary in gaseous phase, only due to the +I effect. in gasous phase only +I effect is shown? also in the aqueous phase, the disturbancy in the order of basicity is due to the sum of effects of +I effect, solvation effect and steric hindrance? the order of the stability of the following in aqueous phase: +I effect: tertiary> secondary> primary solvation: primary > secondary > tertiary steric hindrance: primary > secondary > tertiary so does it means that +I is effected in both gaseous and aqueous phase but solvation and steric hindrance are effected only in aqueous phase? also sir there is an order of basicity when R= CH3 group and when R= C2H5 group: R= CH3: secondary> primary> tertiary R= C2H5: secondary> tertiary> primary so sir can we generalise the order that: when R=CH3 group, the order of basicity: secondary> primary> tertiary and when R> CH3 group, the order of basicity: secondary> tertiary> primary
Asked by kaziryan.05 | 12 Jul, 2021, 09:51: PM
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Asked by kaziryan.05 | 06 Jul, 2021, 11:31: PM
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