Which one of the following compounds will form an osazone derivative?

Which of the following is correct?
Pentaacetate of glucose $\xrightarrow{\text{Tollen's reagent}} +ve$ test $(A)$
Pentaacetate of glucose $\xrightarrow{\text{Benedict's reagent}} +ve$ test $(B)$
Pentaacetate of glucose $\xrightarrow{\text{Schiff's reagent}} -ve$ test $(C)$
Pentaacetate of glucose $\xrightarrow{NaHSO_3} -ve$ test $(D)$

The general formula for carbohydrates is:

Which among the following is a product of hydrolysis of one mole of raffinose?

Which of the following is confirmed by the reaction of glucose with hydroxylamine $(NH_2OH)$?

Which of the following compounds is identified by the 'Molisch test'?