A) \[r.(-\hat{i}+\hat{j}+\hat{k})=0\]
B) \[\frac{x-1}{2}=\frac{y-3}{4}=\frac{z-2}{3}\]
C) \[3x+2y-2z+15=0,\]
D) \[{{u}_{1}}\]
Correct Answer: A
Solution :
Coupling of diazonium salts takes place in the following order as
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