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![[Post New]](/templates/default/images/icon_minipost_new.gif) 27 Feb 2008 11:36:48 IST
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2 iodides of mercury are Hg2I2 and HgI2. one of them appears red and other one green. then a) the d- orbital splitting is stronger in Hg22+ than Hg2+ ion b) Hg2I2 red photons from light c) HgI2 absorbs red photons from light d) None
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27 Feb 2008 12:04:19 IST
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The answer is B
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27 Feb 2008 12:09:26 IST
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can u expalin how
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27 Feb 2008 23:00:22 IST
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answer is B but how
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29 Feb 2008 11:19:23 IST
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cant anyone explain it
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29 Feb 2008 11:22:51 IST
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the answer seems to be b)
because Hg2I2 would appear red only if it emits red photons
now it is given that it absorbs red photons hence it would emit them when it falls from the excited state
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Impossible To be Impossible is Impossible |
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31 Mar 2008 15:31:47 IST
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Answer should be (c) Green is complementry color of red. So some thing will appear green only if it absorb red photons
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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31 Mar 2008 18:45:39 IST
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Krishna Gopal Sir is absolutely correct.Answer should be (C).
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"Nenenthedhavano naake teleedu"
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1 Apr 2008 12:07:22 IST
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Answer is B
I'm pretty sure
HgI2 is red-orange in colour........So it emits red photons and absorbs green photons
(Red and green here refer to the wavelengths of the photons)
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