HOCl reacts with CH₂=CH₂ to produce HOCH₂CH₂Cl in an electrophilic addition reaction.

1. (a)(i)Define addition reaction.[1]
2. (a)(ii)Describe how Cl₂ is used to produce HOCl.[1]
3. (a)(iii)State one use for HOCl.[1]
4. (b)Complete Fig. 6.1 to show the mechanism for the reaction between HOCl and CH₂=CH₂ to produce HOCH₂CH₂Cl. Include charges, dipoles, lone pairs of electrons and curly arrows, as appropriate. [Fig. 6.1][4]
5. (c)(i)State the reagent and conditions for step 1.[1]
6. (c)(ii)Identify the type of reaction that occurs in step 2.[1]
7. (c)(iii)Complete the equation to show the reaction in step 2. HOCH₂CH₂CN + ...................................................[1]

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