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प्रश्न
What is the action of concentrated sulphuric acid on copper
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उत्तर
Sulphuric acid oxidizes metal Cu.
`Cu + 2H_2SO_4 -> CuSO_4 +SO_2 +2H_2O`
Copper Sulphuric Copper Sulphur Water
acid sulphate dioxide
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संबंधित प्रश्न
What is molecular formula of oleum?
(a) H2SO3
(b) H2SO4
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(d) H2S2O8
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(ii) In peroxosulphuric acid \[\ce{(H2SO5)}\] sulphur is in +6 oxidation state.
(iii) Iron powder along with \[\ce{Al2O3}\] and \[\ce{K2O}\] is used as a catalyst in the preparation of \[\ce{NH3}\] by Haber’s process.
(iv) Change in enthalpy is positive for the preparation of \[\ce{SO3}\] by catalytic oxidation of \[\ce{SO2}\].
The oxidation number of sulphur in Na2S4O6 is:-
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What is the catalyst used for the oxidation of SO2 to SO3 in the lead chamber process for the manufacture of sulphuric acid?
