Consider the following rections: (i) Glucose \(+ ROH \xrightarrow{\text { dry } HCl }\) Acetal \(\xrightarrow[\left( CH …

Consider the following rections:
(i) Glucose \(+ ROH \xrightarrow{\text { dry } HCl }\) Acetal \(\xrightarrow[\left( CH _3 CO \right)_2 O ]{\text { x eq.of }}\) Acetyl derivative
(ii) Glucose \(\xrightarrow{ Ni / H _2} A \xrightarrow[\left( CH _3 CO \right)_2 O ]{\text { y eq.of }}\) Acetyl derivative
(iii) Glucose \(\xrightarrow[\left( CH _3 CO \right)_2 O ]{\text { z eq.of }}\) Acetyl derivative ' \(x\) ', ' \(y\) ' and ' \(z\) ' in these reactions are respectively: