explain in detail.

Please print or type,no cursive writing.

26. What type of compound would best fit the following IR spectrum? wavelength (um) 5 5.5 6 3.5 4 4.5 7 8 2.5 100 9 10 11 12 13 14 15 16 80 R 60 40 20 0 40000 3500 3000 2500 1400 1200 1000 800 600 2000 1800 1600 wavenumber (cm) (A) Alkene (B) Alkyne (C) Phenol (D) Aldehyde (E) Amide 27. How many triplet signals are expected for the following compound in 'H NMR? H H H CH3 H3C H H (A) O (B)1 (C) 2 (D) 3 (E) 4 28. Which of the following conditions does not generate carbocation intermediates? HBE HB Brz HBr ROOR H-B (B) AlBry (A) (C) (D) (E)