D-And F-Block Elements Ques 432
Question: AgCl and NaCl are colourless NaBr and Nal are also colourless but AgBr and AgI are coloured. This is due to
Options:
A) $ A{{g}^{+}} $ has half-filled d-orbital
B) $ A{{g}^{+}} $ polarises $ B{{r}^{-}} $ and $ {{I}^{-}} $
C) $ A{{g}^{+}} $ depolarises $ B{{r}^{-}} $ and $ {{I}^{-}} $
D) None is correct
Show Answer
Answer:
Correct Answer: B
Solution:
$ AgCl,NaCl,NaBr, $ NaI less polarization, more ionic, colourless $ AgBr,AgI $ more polarization, less ionic, more covalent, coloured.
