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18 Nov 2019
Friedal-Craft alkyation reagent(s) C_2H_5Cl/AlCl_3 Cl_3/CH_3COCl CH_3COCl/AlCl_3 CH_3COCl/FeCl_3 CH_3Cl/FeCl_3 Which of the following functional groups are m-directing ? NO_2, CH_3, OH Br, NH_2, OH I, SO_3H, OH CO_2H, SO_3H, NO_2 OCH_3, Cl, COCH_3 Which statement about benzene is incorrect? Each C atom is sp^2 hybridized The C-C pi -bonding is delocalized The C_6 ring is planar There are 12 sigma (sigma) bonds in benzene The average C-C bond distance is same as C-C double Which of the following is a conjugated diene 1-methylcyclohexa-1, 4-diene 2-methylcyclohexanone cyclohexa-1, 3-diene cycloocta-1, 5-diene cyclohexa-1, 4-diene The aromatic compound is: Which of the following reaction involves a benzyne mechanism? Ph-CH_3 rightarrow Ph-COOH Ph-Br rightarrow Ph-NH_2 Ph-OH rightarrow Ph-Cl Ph-CH_3 rightarrow Ph-CH_2 none of these The benzene has ....... pi bonds 1 2 3 4 6 The reagent used for allylic bromination is: Br_2/FeBr_3 Br_2/Fe Br_2/AlBr_3 NBS Br_2/HBr The major product in the reaction of benzene with 1-chloropropane, in the presence of AlCl_3 iso-propylbenzene n-propylbenzene chlorobenzene o-chloro-n-propylbenzene p-chloro-n-propylbenzene
Friedal-Craft alkyation reagent(s) C_2H_5Cl/AlCl_3 Cl_3/CH_3COCl CH_3COCl/AlCl_3 CH_3COCl/FeCl_3 CH_3Cl/FeCl_3 Which of the following functional groups are m-directing ? NO_2, CH_3, OH Br, NH_2, OH I, SO_3H, OH CO_2H, SO_3H, NO_2 OCH_3, Cl, COCH_3 Which statement about benzene is incorrect? Each C atom is sp^2 hybridized The C-C pi -bonding is delocalized The C_6 ring is planar There are 12 sigma (sigma) bonds in benzene The average C-C bond distance is same as C-C double Which of the following is a conjugated diene 1-methylcyclohexa-1, 4-diene 2-methylcyclohexanone cyclohexa-1, 3-diene cycloocta-1, 5-diene cyclohexa-1, 4-diene The aromatic compound is: Which of the following reaction involves a benzyne mechanism? Ph-CH_3 rightarrow Ph-COOH Ph-Br rightarrow Ph-NH_2 Ph-OH rightarrow Ph-Cl Ph-CH_3 rightarrow Ph-CH_2 none of these The benzene has ....... pi bonds 1 2 3 4 6 The reagent used for allylic bromination is: Br_2/FeBr_3 Br_2/Fe Br_2/AlBr_3 NBS Br_2/HBr The major product in the reaction of benzene with 1-chloropropane, in the presence of AlCl_3 iso-propylbenzene n-propylbenzene chlorobenzene o-chloro-n-propylbenzene p-chloro-n-propylbenzene
Collen VonLv2
10 Jul 2019