The Lassiagne's extract is boiled with dil $$\mathrm{HNO}_3$$ before testing for halogens because,

Given below are two statements :

Statement (I) : The orbitals having same energy are called as degenerate orbitals.

Statement (II) : In hydrogen atom, 3p and 3d orbitals are not degenerate orbitals.

In the light of the above statements, choose the most appropriate answer from the options given below :

Sugar which does not give reddish brown precipitate with Fehling's reagent, is :

In the given reactions, identify the reagent A and reagent B.