indicate whether or not each of the following disaccharides

indicate whether or not each of the following disaccharides gives a positive benedicts test:

Maltose

Cellobiose

Sucrose

Lactose

Solution

Benedict`s test gives positive if the disccharide is a reducing sugar

of the given compounds

maltose , cellobiose and lactose are reducing sugars

whereas

sucrose is a non reducing sugar

so

maltose ---> Yes

Cellobiose --> Yes

Surcose --> NO

Lactose ---> yes