What is the MAJOR product in each of the following reactions? oxidation of 2-pen

Question

What is the MAJOR product in each of the following reactions? oxidation of 2-pentanol oxidation of 2-methyl-2-pentanol reduction of 2-pentanone dehydration of 2-pentanol decarboxylation of a 3-oxo-2-methylpentanoic acid A) 2-pentanol B) 2-pentene C) 2-pentanone D) 3-pentanone E) no reaction refer to the structure of glutathione. How many chiral carbons are in glutathione? A) four B) six C) two D) three E) five What will be the charge on this molecule at pH 7.4? A) +1 B) 0 C) -1 D) -2 E) -3 Glutathione (GSH) is an important antioxidant in plants and animals. The amine in this molecule is A) primary B) secondary C) tertiary D) quaternary E) benzylic Which of the following pictures represents structure of the amino acid GLUTAMIC ACID at physiological pH = 7.4 Consider a solution which is 0.10 M in acetic acid and 0.10 M in sodium acetate. Which of the following statements is true? A) If a small amount of NaOH is added, the pH decreases very slightly. B) If NaOH is added, the OH^- ions react with the CH_3COO^- ions. C) If a small amount of HCl is added, the pH decreases very slightly. D) If HCl is added, the H^+ ions react with CH_3COOH ions. E) If more CH_3COOH is added, the pH increases. Which of the following pairs of compounds are NOT isomers? A) pentane and 2-methylbutane B) 2-hexene and cyclohexane C) 2-methylpentane and 2, 3-dimethylbutane D) hexane and 2-methylheptane Which of the following is a weak acid? A) phenol B) ethanol C) acetone D) ethanal E) cyclohexanone

Explanation / Answer

36.Oxidation of 2-pentanol is:

CH3-CH2-CH2-CHOH-CH3 + O -->

CH3-CH2-CH2-CO-CH3 + H2O

Pentanone -2 means option C is correct.

37.2-Methyl-2-pentanol is a tertiary alcohol, therefore it will not be oxidized. The correct answer is E) No reaction.

38.Reduction of Pentanone-2:Major product is 3-Pentanone.(Option D)

39.Dehydration of 2-Pentanol : Major product is 2-pentene.(Option B)

40.Dehydration of 3-oxo-2-methyl pentanoic acid :Major product is 2-pentanol(option A)

51.Four chiral carbons are present in glutathione.

52.Charge on glutathione at pH 7.4 is -1.

53.The amine in the molecule is secondary.option(B)

54.Structure of glutamic acid at ph=7.4 is option(B) is correct.

56.option(D) Hexane and 2-Methyl-heptane are not isomers.

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