A) \[MCl>Ml>MBr>MF\]
B) \[MF>MCl>MBr>Ml\]
C) \[MF>MCl>MI>MBr\]
D) \[Al>MBr>MCl>MF\]
Correct Answer: A
Solution :
| Key Idea According to Fajan's rule, |
| Covalent character \[{{E}^{o}}=0.337V\] |
| \[C{{u}^{2+}}+{{e}^{-}}\xrightarrow[{}]{{}}C{{u}^{+}},\] |
| In the given options, cation is same but anions are different. Among halogens the order of size is\[{{E}^{o}}=0.153V\] |
| \[Cu+{{e}^{-}}\xrightarrow[{}]{{}}Cu,\]Order of covalent character is |
| \[{{N}_{2}}+3{{H}_{2}}\xrightarrow[{}]{{}}2N{{H}_{3}},\] |
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