Which of the following methods is suitable for the preparation of 1, 3, 5-tribromobenzene from
benzene?
A. (i) AlBr3/Br2, light (ii) separation of isomers.
B. (i) HNO3/H2SO4 (ii) Sn/HCl (iii) Br2 (iv) NaNO2/HCl (v) C2H5OH, ∆.
C. (i) HNO3/H2SO4 (ii) NaBH4 (iii) Br2/CH3COOH (iv) NaNO2/HCl (v) H3PO2.
D. (i) HNO3/H2SO4 (ii) H2/Pd (iii) NaNO2/HCl (iv) CuBr/HBr.
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Which of the following methods is suitable for the preparation of 1, 3, 5-tribromobenzene from benzene?
=> (i) HNO3/H2SO4 (ii) H2/Pd (iii) NaNO2/HCl (iv) CuBr/HBr.
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Answer:
The answer is B. (i) HNO3/H2SO4, (ii) Sn/HCL, (iii) Br2, (iv) NaNO2/HCL, (v) C2H5OH, heat
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