OCR A-Level Chemistry A Organic Synthesis | 59 Questions and Answers with complete solution

Alkene + hydrogen /nickel catalyst/423K= - alkane Alkene + bromine /room temperature= - dihaloalkane Alkene + HCl(g/aq) /room temperature= - haloalkane (mixed products) Alkene + H2O(g) /H3PO4= - alcohol (mixed products) Primary alcohol + 2[O] /excess K2Cr2O7/H2SO4/reflux= - carboxylic acid Primary alcohol + [O] /K2Cr2O7/H2SO4/distil= - aldehyde Secondary alcohol + [O] /K2Cr2O7/H2SO4/reflux= - ketone Alcohol + H3PO4 or H2SO4/reflux= - alkene + H2O Alcohol + HBr /H2SO4/reflux= - haloalkane + H2O Haloalkane + NaOH(aq)= - alcohol + sodium halide Haloalkane + H2O= - alcohol + halide acid Haloalkane + NH3= - primary amine + halide ionBenzene + HNO3 /Conc. H2SO4/50C= - nitrobenzene + H2O Benzene + 2HNO3 /Conc. H2SO4/70C= - dinitrobenzene + 2H2O Benzene + Br2 /FeBr3 or AlBr3/room temperature & pressure - bromobenzene + HBr