Amino group can be directly converted into nitro group by ……………
A. Caro’s acid
B. Fuming mixture of conc. HNO3 + conc. H2SO4
C. NaNO2 + HCI
D. Ethanolic KNO2
Answer:A
Amino group can be directly converted into nitro group by ……………
A. Caro’s acid B. Fuming mixture of conc. HNO3 + conc. H2SO4 C. NaNO2 + HCI D. Ethanolic KNO2