Pearly 6

Question 1

True or False
The principle of Benedict’s test is a measurement of glucose by the copper reduction method which glucose has the ability to reduce copper oxide to copper sulfate in the presence of alkali and heat?

Answer 1

-False (Copper Sulfate to Copper Oxide)

Question 2

True or False
During the laboratory experiment for Benedict’s test for urine sugar the negative result contains 5ml urine, 10 drops of 10% Benedict’s reagent.

Answer 2

-False (5-8 drops)

Question 3

True or False
In Benedict’s Test, color of mixed solution Yellow green or muddy green indicates 3+ result with approximate concentration of 83 mmol/L

Answer 3

-False (2+)

Question 4

True or False
The mixture of supernatant urine and Benedict’s reagent is placed in boiling water bath for 5 minutes to detect the presence of Glucose and Ketones.

Answer 4

-False (Glucose Only)

Question 5

True or False
Benedict’s test is based on the principle of Copper reduction

Answer 5

-True

Question 6

True or False
Boiling of the sample solution for Benedict’s test takes more than 5 minutes could cause a “pass through phenomenon”?

Answer 6

-False (Not more than 5 Mins)

Question 7

True or False
The color of mixed solution for 3+ is muddy orange to orange.

Answer 7

-False

Question 8

True or False
A positive Benedict’s test indicated by formation of Apple green ring at the junction of two liquids.

Answer 8

-False (Rothera’s Test)

Question 9

True or False
In the presence of glucose the entire solution be filled with precipitate ranging in color from yellowish to green to orange to brick red or red orange?

Answer 9

-True

Question 10

True or False
In the presence of glucose the entire solution be filled with precipitate ranging in color from yellowish to green to blue to green to orange to brick red or red orange

Answer 10

-False (yellowish to green to orange to brick red or red orange)