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प्रश्न
What happens when dilute sulphuric acid is treated with Fe
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उत्तर
Dilute H2SO4 reacts with Fe which is below hydrogen in the electrochemical series, with the evolution of H2
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संबंधित प्रश्न
What is molecular formula of oleum?
(a) H2SO3
(b) H2SO4
(c) H2S2O7
(d) H2S2O8
Complete the following equations: CaF2+H2SO4 →
Draw the structure of the following:
H2SO4
Describe the manufacture of H2SO4 by contact process?
Write balanced equations for NaCl is heated with sulphuric acid in the presence of MnO2
What happens when dilute sulphuric acid is treated with CaF2
What is the action of concentrated sulphuric acid on copper
Write chemical reactions for different steps in the manufacture of sulphuric acid by lead chamber process. Draw the structure of phosphorous pentachloride
Complete and balance the following equations:
S+H2SO4(conc.) →
Write a balanced chemical equation for the following reaction:
Sulphuric acid is treated with phosphorous.
Write the formula for pentaamminechlorocobalt (III) sulphate.
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 products formed when conc. sulfuric acid reacts with calcium fluoride.
The molecular formula of oleum is ____________.
Which among the following catalysts is used in manufacture of sulphuric acid by contact process?
In the manufacture of sulphuric acid by contact process Tyndall box is used to ____________.
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:-
The number of dative bonds in sulphric acid molecule is ______.
What is the catalyst used for the oxidation of SO2 to SO3 in the lead chamber process for the manufacture of sulphuric acid?
Write the reaction of conc. H2SO4 with sugar. What is the role of H2SO4 in this reaction?
