21.Which of the following reactions can be used to prepare ethylamine? A) CHaCH2Br 1)CN 2)LAH B) CH3CH2Br a C) NO CHgCH2Br 1) 2)NH2NH2 CH2-C-NH2 E)all of the above Ans:E Page 13Page 13 21. Which of the following reactions can be used to prepare ethylamine? A) CH3CH2Br 1) - CN 2) LAH B) CH3CH2Br 1) N3 2) LAH C) CH3CH2Br 1) 2) NH2NH2 N O O D) CH2-C-NH2 O LAH E) all of the above Ans: E