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Catalogs Discussion Forums -> Physical Chemistry -> atomic structure -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
16 replies   
a formulAE IS NOT GOING TO apply there u have to start from the basics as ratio for atm radii in cases of isotopes the one having the more no of nucleons will have the larger radii and in case of same comp but diff E confi as cuin d9 and d10 the confi which is more stable will have the larger radii
if for any further confusions mail me gagar.iitk@gmail.com
Catalogs Discussion Forums -> Inorganic Chemistry -> question on prediction of configuration of a metal ion from magnetic moment -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
3 replies   
if magnetic moment is given u only can find is a no of unpaired electrons by formulae or just take the max integer then u try for the E-configuration
here no option is going to be correct unless one finds a comp in which fe remains in +4 transition state
Catalogs Discussion Forums -> Organic Chemistry -> stereo -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
7 replies   
In case of compounds having more than one double bond, trans-cis and cis-trans are two different isomers when the double bonds are dissimilarly substituted. ..................yes i agree with this .....................but if the positions are dissimilar in this case cis-trans and trans-cis are going to be same here but here these are going to be OPTICAL ISOMER as the central carbon atom will become chiral if one double bond positioned itself in cis and another in trans but the no of geometrical isomers for this compound is 2 and no of stereo isomer 4
Catalogs Discussion Forums -> Organic Chemistry -> stereo -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
7 replies   
  
*********************Deleted for unacceptable language**********************
 
 IGOT TO TELL U THAT STEREO ISOMERS ARE'NT THOSE KNOWN AS GEOMETRICAL ONE ONLY ......FIRST MISTAKE    SECOND .............NUMBER OF GEOMETRICAL ISOMER DOES'NT MATCH AT ALL AS ........CIS-TRANS =TRANS-CIS  (IF I AM TACKING ABOUT GEOMETRICAL ONES)  EBE   
 
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Catalogs Discussion Forums -> Organic Chemistry -> stereo -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
7 replies   
total no of stereoisomers possible for
 
    CH(Cl)==C(Cl)---CH(Cl)----- C(Cl)==CH(Cl)
 
and plz with full explanation
Catalogs Discussion Forums -> Organic Chemistry -> regarding syllabus -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
5 replies   
thats true that these things not included in jee course but it is advisable to have a slight idea of these topics because u have to apply the concepts in other question which are very well included in your course ...........
Catalogs Discussion Forums -> Physical Chemistry -> chemical bonding ( angles between bp-bp lp-lp bp-lp) -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
3 replies   
with the help of VSEPR theory we can give the expected ans not the exact one as there limitations of this theory one has to be very flexible in the approach
Catalogs Discussion Forums -> Physical Chemistry -> atomic atructure -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
9 replies   
to smrity mathur mam plz check the basics of quantum no's so that u will be able to understand the ans
1s2 2s2 3s2 4s2 3p6 5s2 4p6 6s2 5p6
Catalogs Discussion Forums -> Physical Chemistry -> DOUBT TO BE CLEARIFIED URGENTLY.......PLZ HELP ME -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
better you go for ATKINS
Catalogs Discussion Forums -> Physical Chemistry -> atomic atructure -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
9 replies   
if i redifine the quantum no's as
n=1,2,3..............infinity
L=  0,1,2,3.........n  (but taking only odd values)
m=  -L,-(L-1)............0,............L {taking only even values (moduluswise)}
S=  -1/2,1/2
 
what should be the electronic configuration of Zn(30)
Catalogs Discussion Forums -> Organic Chemistry -> cyclo compounds -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
3 replies   
order is
chlorobenzene
there indeed a problem with the system
Catalogs Discussion Forums -> Organic Chemistry -> Alkenes -> Go to message
This Post 2 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
6 replies   
There is a prob with the sys whenever i am placing thetached to the second corbon atom CH3 group to the second corbon atom the sys rearrangaes to the first one plz read the ans as CH3 attached to the second carbon atom
Catalogs Discussion Forums -> Organic Chemistry -> Alkenes -> Go to message
This Post -2 points    (Olaaa!! Perrrfect answer.   bad job dude!! I dont approve of this answer!  in 1 votes )   [?]
6 replies   


CH3--CH--CH=CH--CH3
I
CH3
Catalogs Discussion Forums -> Organic Chemistry -> Alkenes -> Go to message
This Post -2 points    (Olaaa!! Perrrfect answer.   bad job dude!! I dont approve of this answer!  in 1 votes )   [?]
6 replies   
ANS:

CH3--CH--CH=CH--CH3
I
CH3
Catalogs Discussion Forums -> Organic Chemistry -> cyclo compounds -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
3 replies   
for the ans of this Q u have to check the reactivity of the ring towards the electrophyllic attack as this rxn uses nitronium ion as the attacking reagent cl is a de-activator methoxy is activating the ring by +m effect and methyl is by +I effect benzene remains the same so the order is chlorobenzene
 
 
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