please help me Shiekh.com Green Monday Sale! kellena.beckford@vahoo.com 6:20 PM
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Shiekh.com Green Monday Sale! kellena.beckford@vahoo.com 6:20 PM 2 O MARK AS READ DEL Questions 1 through 3 are hased on the following experiment A chemical test for the presence of dissolved vitamin C is that the vitamin C bleaches a dark blue solution of indophenol. A sturdlent place I ml of indophennl n each of six different test tubes. Then the student added a different lkquid drop by drop to each test tube until the blue color of the indophenol disappeared. As indicaterd in the following table each liquid to a difterent number of drops to bieach out the blue color of the indophenol. Liquid Lemon Juice Fresh Orange juice Cooked orange juice Pineapple juice Apple juice Water Drops required 5 drops 20 drops 30 drops 30 drops 45 drops 100 drops did not bleach it. which liquid had the lowest concentration of vitamin C? a. b. C. d. 1. Fresh orange juice Cooked Orange Juice Lemon juice Apple juice According to these resuits when orange juice s heated it's concentration of vitamin Cis increased. True or False? Please explain with complete sentence ls) 2. Which of the following substances contained no Vitamin C when the study began? a. The indophenol solution b. The cooked orange juice c. The lemon juice d. The apple juice 3.Explanation / Answer
Adding a Liquid which contains Vitamic C will change the color of Indophenol from Blue to Clear.
The more drops of liquid it takes to chnage the color , the less vitamin C the liquid contains.
1) Which liquid had the lowest concentration of Vitamin C ? Ans) Apple Juice
2) According to the results Cooked orange juice requires more drops than the Fresh Orange Juice. So, Vitamin C is present more in Fresh Orange juice and concentration of Vitamic C decreases when cooked.
The given statement is False
3) Indophenol solution did not contain any Vitamin C when the study began.
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