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underset(("Monosubsitituted benzene"))(P...


`underset(("Monosubsitituted benzene"))(P)overset(Na(Hg))underset(+conc. H_(2)SO_(4))rarr Q overset(NaNO_(2))underset(+HCl.0^(@).5^(@)C)rarr R overset(KCN)underset(CuCN)rarr S overset(SnCl_(2))underset(HCl)rarr T`
Correct statement are :

A

B

C

D

P is treated with `Zn+NH_(4)Cl`,

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The correct Answer is:
A, B, D
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