The pH value of decinormal ution of NH4OH which is 20%ionised, is
The aqueous ution of which of the following salt has the lowestpH(a) NaClO (b) NaClO2(c) NaClO3 (d) NaClO4
NaClO4 is a salt of strong acid HClO4 . So it is a strongacid salt.
Order of acidic strength is H2Te > H2Se > H2S > H2ONa2O is a salt of NaOH +H2O and H2O is least acidicamong given acids hence pH in this case will be maxm .