Qualification > Queries

ANY DOUBTS HERE!!!

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nid404:
20) 2 abt each double bond makes 6
further if u consider the whole chain, ull find 2 more...
actually it'll take tooooooo much time to draw the whole thing out....but if u really want it, i shall do it tom and scan it

28)2,4 DNP reacts with carbonyl compound with C=O group

1 already present...
2 formed at the other 2 double bonds

sweetie:
if a carboxylic acid was formed, will da c=o group in da acid react with 2,4 DNPH ??

thanx so much , i really appreciate ur help :-*

cud u also help me in Q4 , 29 of da same year???

nid404:
no it doesn't react with carbonyl groups in acids,esters and amides

nid404:
k
Q4) D

first thing when u c these graphs..look for the obvious
you know 18 protons/eletcrons....electronic configuration 2.8.8 so 0 unpaired electrons....it will be either B or D
Now look at the other proton numbers....you knw electrons are filled singly until there is no more space to....
So upto proton no 15, it is filled singly, no of unpaired electrons increase. Then, they start pairing up, after proton no 15, reducing the no of unpaired electrons.
eg. take 15 electrons
1s22s22p63s2 3p3
the 3 electrons in the p subshell are in the 3 different orbitals and so 15 has the max no of unpaired electrons...3

nid404:
Q29) D

check where the OH groups r
in A, B n C if dehydration happens, double bonds will form as shown in the compound but in D, one OH group is in the centre, which will not give a double bond like desired in the two ends.

I hope ur getting me :-\

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