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प्रश्न
Complete and balance the following equations:
S+H2SO4(conc.) →
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उत्तर
3S + H2SO4(conc.) → 3SO2 + 2H2O
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संबंधित प्रश्न
Write the conditions to maximize the yield of H2SO4 by contact process.
What happens when dilute sulphuric acid is treated with CaF2
When concentrated sulphuric acid was added to an unknown salt present in a test tube a brown gas (A) was evolved. This gas intensified when copper turnings were added to this test tube. On cooling, the gas (A) changed into a colourless solid (B).
1) Identify (A) and (B).
2) Write the structures of (A) and (B).
3) Why does gas (A) change to solid on cooling?
Write structure and molecular formula for the following compounds:
a. Orthophosphoric acid
b. Sulphurous acid
Write the reaction of conc. H2SO4 with sugar.
Which of the following reaction is NOT involved in contact process used for manufacturing sulfuric acid?
Identify the INCORRECT statement about H2SO4.
The molecular formula of oleum is ____________.
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 \[\ce{SO2}\].
Write the reaction of conc. H2SO4 with sugar. What is the role of H2SO4 in this reaction?
