MCQ
Which one is incorrect :
- A$Zn + dil. HNO_3 \to Zn(NO_3)_2 + N_2O$
- B$Zn + conc. HNO_3 \to Zn(NO_3)_2 + NO_2$
- C$Zn + very dil. HNO_3 \to Zn(NO_3)_2 + NH_4NO_3$
- ✓$Cu + dil. HNO_3 \to Cu(NO_3)_2 + N_2O$
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$(A)$ $\left[ FeF _{6}\right]^{3-}$
$(B)$ $\left[ Fe ( CN )_{6}\right]^{3-}$
$(C)$ $\left[ MnCl _{6}\right]^{3-}$ (high spin)
$(D)$ $\left[ Mn ( CN )_{6}\right]^{3-}$

${C_6}{H_5} - N{O_2} + 6[H] \to {C_6}{H_5} - N{H_2} + 2{H_2}O$
The reducing agent used in this reaction is …….