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Chemistry
The mesomeric effects of the groups
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Q. The mesomeric effects of the groups
A
+M, +M, -M, -M
10%
B
+M, -M, +M, -M
63%
C
-M,-M,+M,-M
17%
D
+M, -M , -M, +M
10%
Solution:
B has vacant p-orbital in $-B(CH_3)_2$
