11[4]
Arrange the ligands in decreasing order of bascity:
PPh3,PMe3,PH3,P(OR)3,PF3
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UP 0 DOWN 0 0 21
21 Answers
11Sky, even then how will PH3 be last? Cos as Vishal pointed out last should be P(Ph)3 [7]
1but ani it will show +R only with aromatic compounds
phosphorus is not aromatic i guess :)
11[4]ok. got it. But +R or -I, OR still comes in at No.3 only[3]
1hahaha... (sry for this)
ok ani there its a +R gp bt here its -I gp
(in simpler words it release e- only in resonance)
11But in benzene ring OR is an e- releasing group right? [7]
1yup ani ur rite except one thing OR is an e- withdrawing gp (but its weakr than reso of Ph & -I of F)
11Here goes:
At No.1 is Me. Both H and Me are small. But Me wins over H due to it's e- releasing effect[1]
So H comes in at No.2
-OR is a e- releasing group but comes in No.3 due to it's bulkiness[1]
F being the most electronegative element is more e- withdrawing than Ph and so F comes in at No.5.
HOPE I'M RIGHT [4]
1i think its ulta of wat rahul gave... (din think deep... jus at first luk..)
1i think its ulta of wat rahul gave... (din think deep... jus at first luk..)
1yup and Ph gp will engage the lone pairs in resonance so it shud b last
11-OR is an e- donating group. So why is it at the last place?
11Here basicity is how effectively p can donate it's lone pair of e-.
HOPE I'M NOT BLABBERING [4]
1basisity is basic character or acidic character wat du u mean eureka??
