For "invert sugar", the correct statement(s) is(are)

(Given : specific rotations of (+)-sucrose, (+)-maltose, L-($$-$$)-glucose and L-(+)-fructose in aqueous solution are +66$$^\circ$$, +140$$^\circ$$, $$-$$52$$^\circ$$ and +92$$^\circ$$, respectively.)

Among the following reaction(s), which gives(give) tert-butyl benzene as the major product is(are)

Reagent(s) which can be used to bring about the following transformation is(are)

The nitrogen containing compound produced in the reaction of HNO₃ with P₄O₁₀