why strong conjugate acid and strong conjugate base have tendency to get hydrolysed

Ka is a constant which describes the ionisation of an acid (ie how strong it is) and Kb does the same for bases. pKa is the log form of Ka, defined as pKa = -log(Ka) and pKb = -log(Kb). Like previously with the pH scale, a 1 fold change in pKa will signify a ten fold change in Ka and the same for Kb.Strong acids have weak conjugate bases. Strong bases have weak conjugate acids. A strong acid has a large Ka value (or a small pKa value). A strong base, likewise, has a large Kb value and a small pKb value.