MCQ
What will vbe the final product $B$ in following reaction?


- ✓$3 -$ Nitro benzoic acid
- B$3 -$ Nitro benzaldehyde
- C$3 -$ Amino benzoic acid
- D$3 -$ Amino benzaldehyde


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$(A)\,\,\,\,[Ni(H_2O)_5NH_3]^{2+},$
$(B)\,\,\,\,[Ni(H_2O)_4(NH_3)_2]^{2+}$ and
$(C)\,\,\,\,[Ni(H_2O)_3(NH_3)_3]^{2+}$ is