NEET Zoology Biomolecules Questions Solved

AIIMS - 2008

Cut surfaces of fruit and vegetables often become dark because

(a) dirty knife makes it dark

(b) oxidation of tannic acid in the presence of a trace of iron from the knife makes it dark

(c) dust of the air makes it dark

(d) none of the above

(b)

Difficulty Level:

  • 3%
  • 88%
  • 6%
  • 5%