The pH of a solution decreased by 2.0 how does the hydro imy ion concentration of the solution change ? Increases to 2 times the original concentration increases to 100 times the original concentration decreases to 1/100 of the original concentration decreases to 1/2 of the original concentration

can you attach the

i think it's letter a.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.