Which of the following statements is not true about sucrose?

Among the following, the molecule expected to be stabilized by anion formation is :
C₂, O₂, NO, F₂

The one that will show optical activity is :
(en = ethane-1,2-diamine)

For a reaction,
N₂(g) + 3H₂(g) $$ \to $$ 2NH₃(g) ;
identify dihydrogen (H₂) as a limiting reagent in the following reaction mixtures.