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प्रश्न
What is molecular formula of oleum?
(a) H2SO3
(b) H2SO4
(c) H2S2O7
(d) H2S2O8
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उत्तर
(c) H2S2O7
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संबंधित प्रश्न
Complete the following equations: C + conc. H2SO4 →
Why is `K_(a_2) "<<" K_(a_1)` for `H_2SO_4` in water?
Describe the manufacture of H2SO4 by contact process?
Write balanced equations for NaCl is heated with sulphuric acid in the presence of MnO2
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
What is the action of concentrated sulphuric acid on copper
What is the action of concentrated sulphuric acid on potassium chlorate?
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?
Give balanced chemical equations for Sulphuric acid is treated with hydrogen sulphide
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.
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.
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 molecular formula of oleum is ____________.
Which among the following catalysts is used in manufacture of sulphuric acid by contact process?
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?
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?
