Question

why contents of Benedict's and fehlings test will spill out if directly heated?​

Answer 1

Answer:

This is because the contents of the test tube will spill out if it is directly heated outside. In lab, Benedict's reagent need to test for single specific reducing suga namely, glucose. ... When heated in the presence of reducing sugars, colour turns yellow to orange when "hotter" which is the final colour of the reagent.