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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
Write the conditions to maximize the yield of H2SO4 by contact process.
Complete the following equations: CaF2+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?
What is the action of concentrated sulphuric acid on phosphorous pentachloride
What is the action of concentrated sulphuric acid on copper
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?
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 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?
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?
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?
The number of dative bonds in sulphric acid molecule is ______.
Write the reaction of conc. H2SO4 with sugar. What is the role of H2SO4 in this reaction?
