Why does dissociation rate of `H_(2)S` is decreased in presence of HCl in aqueous solution ?

Why does dissociation rate H_2S is decreased in presence of HCL in aqueous solutio?

Write the dissociation reaction of HCl in aqueous solution?

Dissociation of PCl_(5) decreases in presence of increase in Cl_(2) why ?

What type of sol is obtained when H_(2)S gas is passed over an aqueous solution is SO_(2) ?

The metal ions which are precipitated when H_(2)S gas is passed in the presence of dilute HCl is :

When an aqueous solution of KBr is electrolysed, Br_(2) is evolved at anode but when an aqueous solution of KF is electrolysed, F_(2) does not evolve at anode. Why?

To calculate the rate of decomposition of H_(2)O_(2) in an aqueous solution , a certain volume of the aqueous solution of H_(2)O_(2) is pipetted out and titrated against KMnO_(4) solution at different interval of time . Intervals The observations are given below : {:(Time ("in min"),0,5,10,20),("Volume of "KMnO_(4)("inML"),46.2,37.1,29.8,19.6):} Show that the decomposition of H_(2)O_(2) in aqueous solution is a first order reaction and calculate its rate constant .

Why does physisorption decrease with the increase of temperature ?

Why does the rate of a reaction increase with rise in temperature?

When aqueous CuSO_(4) solution is elestrolysed in presence of two plantinum electrodes , the solution becomes acidic . Why ?