15. 16. What is the final product (major) 'A' in the given reaction? CH3 OH CH...

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15. 16. What is the final product (major) 'A' in the given reaction? CH3 OH CH CH3 HCI + 'A' (major product) CH3 CH3 Cl CH (B) CH3 CH2-CH3 (A) CH3 CH (C) shiks CH=CH2 (D) Which of the following reagent is used for the following reaction? CHCH,CH, +CHCH,CHO (a) Manganese acetate (b) Molybdenum oxide (c) Potassium permanganate (d) Copper at high temperature and pressure 17. In the following reaction the reason why meta-nitro product also formed is: NH2 NH2 NH2 NH2 NO2 Conc. HNO3 + Conc. HSO, 288 K NO2 NO2 [A] [B] [C] 51% 47% 2% (a) Formation of anilinium ion (b)-NH2 group is highly meta- directive (c) -NO substitution always takes place at meta- position 18. (d) low temperature Which of the following are isostructural pairs? A. SO and Cro B. SiCl4 and TiCl4 C. NH3 and NO D. BCl3 and BrCl 3 (a) C and D only (b) A and B only (c) A and C only (d) B and C only 19. Out of the following which type of interaction is responsible for the stabilization of -helix structure of proteins? (a) Hydrogen bonding (b) Covalent bonding (c) Vander Waals forces (d) lonic bonding 20. The gas released during anaerobic degradation of vegetation may lead to: (a) Ozone hole (c) Corrosion of metals (b) Global warming and cancer (b) Acid rain 15. 16. What is the final product (major) 'A' in the given reaction? CH3 OH CH CH3 HCI + 'A' (major product) CH3 CH3 Cl CH (B) CH3 CH2-CH3 (A) CH3 CH (C) shiks CH=CH2 (D) Which of the following reagent is used for the following reaction? CHCH,CH, +CHCH,CHO (a) Manganese acetate (b) Molybdenum oxide (c) Potassium permanganate (d) Copper at high temperature and pressure 17. In the following reaction the reason why meta-nitro product also formed is: NH2 NH2 NH2 NH2 NO2 Conc. HNO3 + Conc. HSO, 288 K NO2 NO2 [A] [B] [C] 51% 47% 2% (a) Formation of anilinium ion (b)-NH2 group is highly meta- directive (c) -NO substitution always takes place at meta- position 18. (d) low temperature Which of the following are isostructural pairs? A. SO and Cro B. SiCl4 and TiCl4 C. NH3 and NO D. BCl3 and BrCl 3 (a) C and D only (b) A and B only (c) A and C only (d) B and C only 19. Out of the following which type of interaction is responsible for the stabilization of -helix structure of proteins? (a) Hydrogen bonding (b) Covalent bonding (c) Vander Waals forces (d) lonic bonding 20. The gas released during anaerobic degradation of vegetation may lead to: (a) Ozone hole (c) Corrosion of metals (b) Global warming and cancer (b) Acid rain