Find the total number of diprotic acids among the following H3PO4,H2SO4,H3PO3,H2CO3,H2S2O7,H3BO3,H3PO2,H2CrO4,H2SO3
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Q5
One way to express the concentration of oleum (fuming H2SO4 or H2S2O7, i.e., H2SO4+SO3) is in terms of % oleum. (100+X)% oleum means that XgH2O reacts with equivalent amount of SO3 to give oleum.