[" 2.The equivalent conductance of "(M)/(20)" solution of a "],[" weak monobasic acid is "10" mhos "cm^(2)" and at "],[" infinite dilution is "200mhoscm^(2)" .The dissociation "],[" constant of this acid is :- "],[[" (1) "1.25times10^(-4)," (2) "1.25times10^(-5)],[" (3) "1.25times10^(-6)," (4) "6.26times10^(-4)]]