The concentration of `H_(2)SO_(4)` is used up.
`"Cell reaction : "PbO_(2)(s)+2H_(2)SO_(4)(aq)rarr PbSO_(4)(s)+2H_(2)O(l)`

Concentrated H_(2)SO_(4) is added to braium perxenate .s

For the reaction : SO_(2)+2H_(2)Sto3S+2H_(2)O -

Concentrated H_(2)SO_(4) is added to cane sugar .

Among the reactions given the oxidant and the reductant in each case: Ca(OH)_(2)(aq)+H_(2)SO_(4)(aq)toCaSO_(4)(s)+2H_(2)O(l)

Write the anode and cathode reactions for the given cell reactions. S_(2)O_(8)^(2-)(aq)+2I^(-)(aq)rarr2SO_(4)^(2-)(aq)+I_(2)(s)

In which of the following reactions, H_(2)O_(2) acts as a reducing agent- (1) H_(2)O_(2) + 2H^(+) + 2e rarr 2H_(2) O (2) H_(2)O_(2) - 2e rarr O_(2) + 2H^(+) (3) H_(2)O_(2) + 2e rarr 2OH^(-) (4) H_(2)O_(2) + 2H^(-) - 2e rarr O_(2) + 2H_(2) O

MnO_(2) , is prepared by electrolysis of an aqueous solution of mnso4 acidified with H_(2)SO_(4) . The reaction is Mn^(2+)(aq)+2H_(2)OrarrMnO_(2)(s)+2H^(+)(aq)+H^(2)(g) . 1kg of MnO_(2) , is produced , when 27A current is passed for 24 h . What is the efficiency of the current passed ? Write the cathode and anode reactions .

Complete the chemical reactions. PbS(s) + H_(2)O_(2) (aq) rarr "MnO"_(4) (aq) + H_(2)O_(2) (aq) rarr CaO(s) + H_(2)O_(2) rarr "AlCl"_(3)(g) + H_(2)O(l) rarr Ca_(3)N_(2)(s) + H_(2)O(l) rarr Classify the above into [a] hydrolysis,[b] redox and [c] hydration reactions.

Among the reactions given the oxidant and the reductant in each case: H_(2)S(g)+HNO_(3)(aq)toH_(2)SO_(4)(aq)+NO_(2)(g)H_(2)O(l)