Which of the following statements about Benedict's test is FALSE?
A. A solution needs to be heated for about 5 minutes in a 100 C water bath first
B. The purpose of the test is to check for the presence of reducing sugars; an orange-red colour change indicates a positive result
C. Any molecules possessing aldehyde or ketone groups will test positive
D. Glucose, maltose and lactose will all test positive; sucrose will test negative
Answer:C
Which of the following statements about Benedict's test is FALSE?
A. A solution needs to be heated for about 5 minutes in a 100 C water bath first B. The purpose of the test is to check for the presence of reducing sugars; an orange-red colour change indicates a positive result C. Any molecules possessing aldehyde or ketone groups will test positive D. Glucose, maltose and lactose will all test positive; sucrose will test negative