get it now

Blazing goIITian

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9 May 2008 18:18:22 IST
Posts: 520
9 May 2008 18:18:22 IST
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get it now
Engineering Entrance , JEE Main , JEE Main & Advanced , Chemistry


he Sequence Rule for Assignment of Configurations to Chiral Centers

Assign sequence priorities to the four substituents by looking at the atoms attached directly to the chiral center.

1.  The higher the atomic number of the immediate substituent atom, the higher the priority.

For example, H?  <  C?  <  N?  <  O?  <  Cl?. (Different isotopes of the same element are assigned a priority according to their atomic mass.)

2.  If two substituents have the same immediate substituent atom,

evaluate atoms progressively further away from the chiral center until a difference is found.

For example, CH3?  <  C2H5?  <  ClCH2?  <  BrCH2?  <  CH3O?.

3.  If double or triple bonded groups are encountered as substituents, they are treated as an equivalent set of single-bonded atoms.

For example, C2H5?  <  CH2=CH?  <  HC?C?


Comments (10)


Hot goIITian

Joined: 20 Nov 2007 20:54:30 IST
Posts: 101
9 May 2008 19:17:11 IST
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hey a4asd , can u give ur house address exactly.......

Blazing goIITian

Joined: 6 Sep 2007 23:18:40 IST
Posts: 956
9 May 2008 19:46:17 IST
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achha hai abhi kam aayega..............

Blazing goIITian

Joined: 10 Jan 2007 19:16:46 IST
Posts: 391
9 May 2008 19:47:03 IST
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ya me too..........no other trial place....

Hot goIITian

Joined: 25 Apr 2007 12:39:40 IST
Posts: 175
9 May 2008 19:50:51 IST
0 people liked this

which bomb should we use??

Blazing goIITian

Joined: 7 Feb 2007 21:47:25 IST
Posts: 1608
9 May 2008 19:57:06 IST
0 people liked this

Places 2 try: 1) Arjun Singhs house
2) Parliament
3) Supreme Court.
Should have given these recipies earlier(when SC/ST reservation was starting)

Blazing goIITian

Joined: 7 Apr 2008 17:30:16 IST
Posts: 396
9 May 2008 20:23:37 IST
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@ djdylan.......... LOL :P

Blazing goIITian

Joined: 19 Mar 2007 23:11:07 IST
Posts: 585
10 May 2008 00:32:54 IST
0 people liked this

i want to try all this in vit !

Blazing goIITian

Joined: 11 Jun 2007 22:58:05 IST
Posts: 914
10 May 2008 07:54:21 IST
0 people liked this

yeh al qaida ki website se copy kiya?? anyways, we all r coming ur house ............. lets "bomb up" things.....

Blazing goIITian

Joined: 31 May 2007 09:32:50 IST
Posts: 520
10 May 2008 18:07:04 IST
0 people liked this

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Blazing goIITian

Joined: 31 May 2007 09:32:50 IST
Posts: 520
10 May 2008 18:07:29 IST
0 people liked this

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