what are the procedures involved when converting chloroethane to propylamine?

The answer is as follows:

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Step 1;
Nucleophilic substitution with 'KCN/HCN' to CH3CH2CN in aqueous solution.
R-Cl + CN^- = R-CN + Cl^-
Step 2.
Reduction with a nickel/hydrogen catalyst
R-Cn + 2H2 ==Ni==> R-CH2NH2

Asked and answered. React with cyanide, then reduce.