11. 12. The product formed in the first step of the reaction of Br CH3-CH2-CH-CH2-CH-CH3 with excess Mg/ Et2O (Et = C2H5) is: Br (A) CH3-CH2-CH-CH2-CH-CH3 H3C-CH-CH2-CH-CH2-CH3 CH2 (B) CH3-CH CH-CH3 (C) CH3-CH2-CH-CH2-CH-CH3 CH3-CH2-CH-CH2-CH-CH3 MgBr (D) CH3CH2-CH-CH2-CH-CH3 MgBr Which of the following compound given pink colour on reaction with phthalic anhydride in conc. H2SO4 followed by treatment with NaOH? on with ph CH3 CH3 HO. (B) (A) HO HO CH3 CH3 H3C CH3 (C) OH (D) HO OH H3C 13. What is the major product formed by HI on reaction with CH=CH2? H3C CH3 CH3 (A) CH3-C-CH-CH3 CH3 (C) CH3-CH-CH-CH2- -CH3 CH3 CH3 (B) CH3-C-CH-CH3 CH3 CH3 (D) CH-C- -CH-CH CH3 H 14. Al2O3 was leached with alkali to get X. The solution of X on passing of gas Y, forms Z. X, Y and Z respectively are: (a) X-Na[Al(OH)], Y=SO, Z=AO (c) X=Al(OH),, Y=SO, Z = Al2O3.xH2O (b) X=Al(OH),, Y=CO, Z = AlO (d) X=Na[Al(OH)], Y=CO, Z=AlO3.xHO