Organic Chemistry QUESTION 6 Which of the following statements is not one of the

Question

Organic Chemistry

QUESTION 6 Which of the following statements is not one of the disadvantages of using sublimation as a purification technique a. Sublimation can not be used for solids that have extremely low vapor pressures. b. The solid being sublimed usually needs to be heated under the presence & a vacuum c. Sublimation is faster and cleaner than recrystallization d. Solid impurities must have a lower vapor pressure than the solid being sublimed QUESTION 7 Distillation is commonly used in the organic laboratory as a way to: a. remove a reaction solvent b. purify an organic liquid. c. separate the components of a liquid mixture. d. all of the above QUESTION 8 What is a theoretical plate? a. Utensil used for eating. b. One condensation-vaporization cycle. c. M electrode found in a storage battery d. Utensil used for the collection of an offering. QUESTION 9 Fractional distillation gives a better separation than simple distillation because _________ a the fractionating column used in fractional distillation contains more theoretical plates b. the fractionating column used in fractional distillation contains less theoretical plates c. does not require as much heat as simple distillation d. simple distillation is better because it requires less glassware

Explanation / Answer

6>. C -> Sublimation is faster and cleaner than recrystallization

7>. D -> All the above

8>. D -> Utensil used for collection of an offering

9>. A -> The fractionating column used in fractional distillation contains more theoretical plates

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.