17. After heating a glass containing sand, Jasmine decided to pick it up. Jasmin

Question

17. After heating a glass containing sand, Jasmine decided to pick it up. Jasmine should A. use a rag or paper towels. B. pick up the end that looks cooler. C. use his lab coat. D. pour cold water on it. 18. What is the full meaning of Ei reaction A. B. C. D. Elimination one reaction Excitation one reaction Evolution reaction Elimination unimolecular reaction 19. Consider the following reaction H SO4 heat, HO 2-methyl-2-butanol (t-amyl alcohol) bp 1020C d 0.805 Mw 88.15 2-methyl-2-butene 2-methyl-1-butene 38.60C 0.662 70.14 31.20C 0.662 70.14 Which of the following statements is CORRECT? A. This is an example of a substitution reaction B. H SO4 cleaves a methyl group from the starting material C. This is an elimination reaction D. Water is added to the alcohol to yield the products 20. Which of the following statements about Gas chromatography is CORRECT A. The mobile phase is Silica gel B. The mobile phase does not interact but serves as a carrier medium C. It is useful for isolation a mixture of non-volatile compounds D. The mobile phase is always Chlorine gas

Explanation / Answer

17) jasmine should use tarah or paper towel, because it is bad conductor of heat and will be safe to pick.

18) E1 is elimination one reaction , it includes two step mechanism.

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