Give decreasing order of the stabilities of the following :

1.	Give decreasing order of the stabilities of the following :
Answer» Solution :`EDG` increases the stability of -I order-`NO_(2) GT -Cl gt -OMe` so the order is 2gt3gt4gt1gt5.(b) Here we have an aromatic compound, so resonance effect and `H.C` will also operate. Net `ED` power of `4 gt 5` (because `(+ R) gt H.C)` So the order is : `2 gt 3 gt 1 gt 5 gt 4 `. Structure `(4)` has more `EDG` due to resonance effect is greater than `+1` and `H.C` ( c) Same as in `(b)` except in `(5) (OMe)` group is at `m`, where there is no resonance (only `- I` is considered) So the order is : `2 gt 5 gt (-I at m "is more than" - I at p) gt 3 gt 1 gt 4 (here -I and + R, + Rgt -I)`. Order is : `2 gt 5 gt 3 gt 1 gt 4` (d) Reverse of (a) `(5 gt 1 gt 4 gt 3 gt 2)`. (e) Reverse of (b) `(4 gt 5 gt 1 gt 3 gt 2)`. (f) Reverse of ( c) `(4 gt 1 gt 3 gt 5 gt 2 )`. (g) Stability of benzy1 `C^(oplus)` is determined by ` H.C` Since `H.C` in `(2)` is greater than in `(3)` and `(4)`, the order is `2 gt 3 gt 4 gt 1 gt 6 gt 5`.

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