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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
(c) H2S2O7
(d) H2S2O8
Write the conditions to maximize the yield of H2SO4 by contact process.
Draw the structure of the following:
H2SO4
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
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What happens when dilute sulphuric acid is treated with CaF2
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2) Write the structures of (A) and (B).
3) Why does gas (A) change to solid on cooling?
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S+H2SO4(conc.) →
Write the formula for pentaamminechlorocobalt (III) sulphate.
Write the reaction of conc. H2SO4 with sugar.
Identify the INCORRECT statement about H2SO4.
Identify the products formed when conc. sulfuric acid reacts with calcium fluoride.
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:-
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