Starting from nitrobenzene, how would you prepare aniline? Convert aniline into:a. phenyl isocyanide

Starting from nitrobenzene, how would you prepare aniline? Convert aniline into:
a. phenyl isocyanide
b. azo-dye
[1+2]
ii. Nitrobenzene prefers electrophilic substitution reaction at meta-position. Explain.
[2]
2. 2081 Set R Q.No. 18 Write down a chemical equation of each of the following.
[5]
i. Carbonylation reaction
ii. Fehling's test
iii. Aldol condensation
iv. Williamson's ether synthesis
V. 2, 4- DNP test