Advertisements
Advertisements
Question
How is SO2 prepared in the laboratory from sodium sulfite?
Advertisements
Solution
In laboratory, sulfur dioxide is prepared by treating sodium sulfite with dilute sulfuric acid.
\[\ce{\underset{\text{Sodium sulfite}}{Na2SO_{3(aq)}} + \underset{\text{Sulfuric acid (dil)}}{H2SO_{4(aq)}} -> \underset{\text{Sulfur dioxide}}{SO_{2(g)}} + \underset{\text{Sodium sulfate}}{Na2SO4_{(aq)}} + H2O_{(l)}}\]
APPEARS IN
RELATED QUESTIONS
In interhalogen compounds, which of the following halogens is never the central atom?
Give two uses of ClO2.
The pKa value of HCl is −7.0 and that of HI is −10.0. Which is the stronger acid?
Complete the following.
l2 + KClO3 → _______ + KIO3
Complete the following.
Cl2 + ClF3 → _______
Complete the following.
\[\ce{XeF6 + 6H2O -> \underline{}\underline{}\underline{}\underline{} + HF}\]
Match the following:
| A | B |
| XeOF2 | Xenon trioxydifluoride |
| XeO2F2 | Xenon monooxydifluoride |
| XeO3F2 | Xenon dioxytetrafluoride |
| XeO2F4 | Xenon dioxydifluoride |
What is the oxidation state of xenon in the following compounds?
XeOF4, XeO3, XeF6, XeF4, XeF2.
Fluorine shows only –1 oxidation state while other halogens show –1, +1, +3, +5 and +7 oxidation states. Explain.
Answer the following.
Distinguish between rhombic sulfur and monoclinic sulfur.
The halide that undergoes sp3d hybridisation is ____________.
____________ and ____________ are the rarest elements of the group 18.
Identify the properties of group 17 elements that show decreasing trend down the group.
i. Atomic radius
ii. Ionisation enthalpy
iii. Electronegativity
What is the oxidation state of sulfur in the product formed?
\[\ce{S + \underset{(Conc.)}{2H2SO4} ->}\]
Which of the following statements are TRUE?
Which of the following statement is CORRECT?
The oxidation state of halogen atom in perhalic acid and hypohalous acid are respectively ____________.
Which of the following oxyacid of chlorine has highest thermal stability?
Which among the following gases is used to produce and sustain powerful super conducting magnets for NMR and MRI systems?
Among the trihalides of nitrogen which one is the most basic?
In which substance does nitrogen exhibit the lowest oxidation state?
Among the following order, which one is the correct order of reactivity of group 16 elements?
Give two reactions in which acidified K2Cr2O7 is used as an oxidizing agent.
What is the action of hydrochloric acid on the following?
NH3
What is the action of hydrochloric acid on the following?
Na2CO3
What is the action metal on elements of group 17?
