The group of choices associated with the question was not given, however, the correct options are :
Some people may be allergic to lactose.
Lactose has a melting point of about 203 degrees Celsius.
Lactose is a key ingredient in many medicines.
A lactose molecule contains 12 atoms of carbon.
Answer:
The correct answer is -A lactose molecule contains 12 atoms of carbon.
Step-by-step explanation:
It is clear from the chemical formula of lactose that it has three component that presents in a specific amount to form this compound. There are 11 atoms of oxygen, 22 atoms of hydrogen, and 12 atoms of carbon present in the lactose.
From the formula, it is also clear that it is one of the carbohydrates (disaccharide) as the basic formula of carbohydrate is Cx(H2O)y.