The P Block Elements - Result Question 77
####80. Which one is the correct order of the size of iodine species?
(a) I $^{\text{I }^{+}}>I^{-}$
(b) I $>I^{-}>I^{+}$
(c) I $^{+}>I^{-}>I$
(d) I $^{-}>$I $>$I $^{+}$
[1997]
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Solution:
- (d) We know that positive ion is always smaller and negative ion is always larger than the corresponding atom. Therefore the correct order of the size is $I^{-}>I>I^{+}$
