2 hydroxyphenol

ek aur chiz

MIT pune (petro-chemical kaisa hai??????????????

my aieee rank is 17600(679state rank, bihar) 2275 in WBJEE and good rank in cusat

i didn't fill form of JP noida(whats its last date).

PLZ tell me which of these ll b best for me. shoud i drop this yr?????????????(appearing candidate this year)

PLZ REPLY SOON

no yaar calculatin is nt big

CCP = fcc.in FCC  4r =a(according to ques. it is an element and not a compound)

 . in ques. a is given and thus easily calculate r.

in NaCl structure Na are at corners and Cl are at between the the edge. consequently, edge length = 2R_Cl-+2R_Na+(2R_cl-means dia of 1 Cl i.e in the centre of the edge)

since O in methoxy hv 2 lone pair and ther4 it can donate electron(+M). since O is quite electronegative ther4 it hv -I effect.

@rishi i think meta methoxy phenol is more acidic than phenol becoz due 2 -I of OCH3 the release of H+ frm OH becomes easier.

in 1 line 1 can say that methoxy activates by +M and deactivates by -I(+M is more effective)

QUINONE(black colored) is easily formed frm atmospheric oxidation of phenol

in RMgX, R has 80percent -ve charge.  the carbocation formed by lossing Cl^-  frm ch2=ch-ch2cl is very stable(resonance stabilised).ther4 MgX⁺ takes Cl^-  and ch2=ch-R +MgXCl is formed.

it just oxidises CC double or triple bond (as KMnO4 do). the oxidation is syn type.

it is an oxidisng agent becoz osmium(Os) is in its highest attainable oxidation state 

phenol hv +M effect and ther4 it directs SO3H at ortho & para position.(asOH is a strong activator)

subsequently, NO2 replaces SO3H (NO2+ is stronger electrofile than SO3H) and 2,4,6 trinitrophenol is forrmed i.e picric acid

arre yaaron

just draw canonical structures(CS) 2 times

1)bring E+ at meta w.r.t NO2  ..............clearly,,.in CS, resultant +ve cames at CHO

2)now bring E+ at meta w.r.t CHO......... this brings +ve at C attavhed to NO2

everyone know that +ve at NO2 is more unstable than +ve at C attached to CHO(NO2 , sronger -M and -I)

ther4 orientation of E+ is  according to stronger deactivator 

@ erythro -throo nomenclature is appled only when compound hv 2 dissimilar chiral centre & contain 2 identical groupse.g pentan-2,3diol.

in fisvher projection if identical groups(in given ex. OH) are n same side then it is called erythreo and if they r on opp. side then THReo

since angle starin of the product is more ther4  its not easy 2 frm C+ in cyclobutane(but it can form as any intermediate i.e it can't be isolated)

VAN DER WAAL FORCE(intermolecular) most of the area of straight chain molecule can interact with their neighbors. with branching shape tends to spherical ther4 less intermolecular interaction(less intermolecular force & hence low b.p_)

arre yaaron problem is that

i didnt fill the form of JP(air aieee=17600), I got 2275 rank in WBJEE and expect  a good rank in cusat.plz tell:- which of these is best 4 me (branch and college) . can i do anything to get admission in JP noida NOW.........