A chemical test for the presence of dissolved vitamin C is that the vitamin C bleaches a dark blue solution of indophenol. A student place 1 ml of indophenol n each of six different test tubes. Then the student added a different liquid drop by drop to cach test tube until the blue color of the indophenol disappeared. As indicated in the following table each liquid to a different number of drops to bleach out the blue color of the indophenol. Liquid & Drops required
Lemon Juice 5 drops
Fresh Orange juice 20 drops
Cooked orange juice 30 drops
Pineapple juice 30 drops
Apple juice 45 drops
Water 100 drops did not bleach t.

Which liquid had the 2nd lowest concentration of vitamin C? Explain your reasoning​