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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
Write the conditions to maximize the yield of H2SO4 by contact process.
Complete the following equations: CaF2+H2SO4 →
Complete the following equations: C + conc. H2SO4 →
Draw the structure of the following:
H2SO4
Mention three areas in which H2SO4 plays an important role.
Why is `K_(a_2) "<<" K_(a_1)` for `H_2SO_4` in water?
Describe the manufacture of H2SO4 by contact process?
What is the action of concentrated sulphuric acid on phosphorous pentachloride
What happens when dilute sulphuric acid is treated with Fe
What happens when dilute sulphuric acid is treated with CaF2
Write chemical reactions for different steps in the manufacture of sulphuric acid by lead chamber process. Draw the structure of phosphorous pentachloride
Write structure and molecular formula for the following compounds:
a. Orthophosphoric acid
b. Sulphurous acid
Write the reaction of conc. H2SO4 with sugar.
Identify the products formed when conc. sulfuric acid reacts with calcium fluoride.
Gas 'X' is prepared by treating sodium sulfite with dilute sulfuric acid. When gas 'X' is oxidised by dioxygen in presence of vanadium (V) oxide, gas 'Y' is formed. Identify X and Y.
The sulfuric acid obtained by contact process is ____________ % pure.
What is the ratio of volumes of gases involved in the preparation of sulphur trioxide from sulphur dioxide and dioxygen respectively under similar conditions of temperature and pressure?
In the manufacture of sulphuric acid by contact process Tyndall box is used to ____________.
Hot conc. \[\ce{H2SO4}\] acts as the moderately strong oxidising agent. It oxidises both metals and non-metals. Which of the following element is oxidised by conc. \[\ce{H2SO4}\] into two gaseous products?
Which of the following statements are correct?
(i) S – S bond is present in \[\ce{H2S2O6}\].
(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:-
Write the reaction of conc. H2SO4 with sugar. What is the role of H2SO4 in this reaction?
