Question

22. What is the IR What is the major organic product obtained from the following + NaOHA 2 Hyot OH O он о он OH A) 4 B) 2 C)3 D)1 19. Provide an acceptable name for the compound below CHICH CH CH SH ан, н A) (Z)-4-methylhex-3-ene-1-thiol B) (E)-4-methylhex-3-ene-1-thiol C) (2)-3-methylhex-3-ene-6-thiol D) (E)-3-methylhex-3-ene-6-thiol 20. What compound is formed when 2.2-dimethyloxirane is treated with ethanol containing a trace of HCI? A) 2-ethoxy-2-methyl-1-propanol B) 1-ethoxy-2-methyl-2-propanol C) 2-ethoxy-2-methyl-2-propanol D) 2-ethoxy-1-butanol E) 1-ethoxy-2-butanol 21. What is the major organic product obtained from the following reaction? A) 3 B) 1 C)2 DA

Answer 1

Answer (18) NaBHy reduces both keto and aldehyde. groups. But positive charge density on carbon centre in -e- group of aldehyde is higher than Ketone. So, NaBH & readily reduces aldehyde group. LH H-BH₃ yo H Ha 애 option (1) is correct