Chemical equation H2C=CH2 + Br2 H2 Br C - CH2 Br H H H H C = C + Br Br Br - C C - Br – – H H H H Ethene + Bromine 1,2-dibromoethane 2.Propene reacts with chlorine to form 1,2-dichloropropane. Chemical equation H3C CH=CH2 + Cl2 H3C CHCl - Propene + Chlorine 1,2-dichloropropane H H H H H H H C C = C + Cl Cl H - C C - C- Cl – – H H H Cl H H H H H H H H H H C C - C = C + I I H - C- C C - C- I – – H H H H H H H H 3.Both But-1-ene and But-2-ene undergo halogenation with iodine to form diiodobutane and 2,3-diiodobutane Chemical equation But-1-ene + iodine 1,2 H3C CH2 CH=CH2 + I2 H3C CH2CH I - CH2I But-2-ene + Iodine 2,3-diiodobutane H3C CH= CH-CH2 + F2 H3C CHICHI - CH3 H H H H H H H H
Chemical equation H2C=CH2 + Br2 H2 Br C - CH2 Br H H H H C = C + Br – Br Br - C – C - Br H H H H Ethene + Bromine 1,2-dibromoethane 2.Propene reacts with chlorine to form 1,2-dichloropropane. Chemical equation H3C CH=CH2 + Cl2 H3C CHCl - Propene + Chlorine 1,2-dichloropropane H H H H H H H C C = C + Cl – Cl H - C – C - C- Cl H H H Cl H H H H H H H H H H C C - C = C + I – I H - C- C – C - C- I H H H H H H H H 3.Both But-1-ene and But-2-ene undergo halogenation with iodine to form and 2,3-diiodobutane Chemical equation But-1-ene + iodine 1,2 diiodobutane H3C CH2 CH=CH2 + I2 H3C CH2CH I - CH2I But-2-ene + Iodine 2,3-diiodobutane H3C CH= CH-CH2 + F2 H3C CHICHI - CH3 H H H H H H H H