Question

two pipes can fill a tank in 10 hrs & 12 hrs , while a 3rd pipe empties full tank in 20 hrs

Answer 1

Nucleophilic acyl substitution describe aclass of substitution reactions involvingnucleophiles and acyl compounds. In this type of reaction, a nucleophile – such as analcohol, amine, or enolate – displaces theleaving group of an acyl derivative – such asan acid halide, anhydride, or ester.