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3. ln ions are largely coloured while ln* ions are not coloured. the colour of ln" compounds are due to transition: (b) 4f 4f (d) 5d > 5d transition (a) 4f5d (c
3. Ln ions are largely coloured while Ln* ions are not coloured. The colour of Ln" compounds are due to transition: (b) 4f 4f (d) 5d > 5d transition (a) 4f5d (C) charge transfer from liquid to metal ion D.. TLL Da O auidotion atoto oc fha
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Dinesh khalmaniya 1
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option B most of the ln(iii) are coloured due to f-f transition. these have unpaired electrons
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sir a is given
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wrong diya he. yha f-f transition hota he
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ok sir lekin ce+3 me f-d transition hota h na
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Ce3+ is colourless
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sir ques me Ln+2 diya h
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Priyanshu kumar Best Answer
The colour of lanthanides is due to f-f transition
sir a is given in ans
wait let me confrm
ok sir lekin ce+3 me f-d transition hota h na
haa
Ce3+ exception hai
ans ky h sir iss ques ka ??
4f-5d sahi hai option A
lekin sir abi aapne bola f-d is in ce is exception .....thn baki sare k liye b f-d ???
mostly lanthanides ke liye f-f transition hi colour hone ke reason hote hai