Amines

Major product of following reaction.
Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?
Match the column I with column II:

(A) Acetaldehyde, Vinylalcohol
(I) Enantiomers
 (B) Eclipsed and staggered ethane
(II) Tautomers
(C)  (+)2 butanol, (-)2-butanol
(III) Chain isomers
 (D) Methyl-n-propylamine and Diethylamine
(IV) Conformational isomers
 (V) Metamer
Which of the following nitro compound do not show chain isomerism  :
What is the name of reaction for preparation of methyl iso cyanide?