Advertisements
Advertisements
प्रश्न
How is SO2 prepared in the laboratory from sodium sulfite?
Advertisements
उत्तर
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
संबंधित प्रश्न
Select appropriate answers for the following.
Stability of interhalogen compounds follows the order _______.
In interhalogen compounds, which of the following halogens is never the central atom?
Give two uses of ClO2.
Answer the following.
What is the action of bromine on magnesium metal?
Write the names of allotropic forms of selenium.
The pKa value of HCl is −7.0 and that of HI is −10.0. Which is the stronger acid?
Complete the following.
\[\ce{ICl3 + H2O -> \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{} + ICl}\]
Complete the following.
BrCl + H2O → _______ + HCl
Complete the following.
Cl2 + ClF3 → _______
Complete the following.
H2C = CH2 + ICl → _______
Complete the following.
\[\ce{XeF4 + SiO2 -> {..........} + SiF4}\]
Complete the following.
\[\ce{XeOF4 + H2O -> \underline{}\underline{}\underline{}\underline{} + HF}\]
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.
Answer the following.
Give two reactions showing the oxidising property of concentrated H2SO4.
Fluorine shows only –1 oxidation state while other halogens show –1, +1, +3, +5 and +7 oxidation states. Explain.
Describe the manufacturing of H2SO4 by the contact process.
Write the order of ionic character of halides with monovalent metal (M).
____________ and ____________ are the rarest elements of the group 18.
Which of the following is INCORRECT with respect to given reaction?
\[\ce{C6H12O6 + 6O2 -> 6CO2 + 6H2O}\]
Which among the following gases is used to produce and sustain powerful super conducting magnets for NMR and MRI systems?
The maximum positive oxidation state shown by halogen is ______.
What is the oxidation number of gold in the complex [AuCl4]1−?
In which substance does nitrogen exhibit the lowest oxidation state?
Give two reactions showing oxidising property of concentrated H2SO4. Write the structures of HClO3 and HClO4.
Arrange the following in the increasing order of the property mentioned:
\[\ce{HOCl}\], \[\ce{HClO2}\], \[\ce{HClO3}\], \[\ce{HClO4}\] (acidic strength)
Arrange the following in the increasing order of the property mentioned:
\[\ce{HF}\], \[\ce{HCl}\], \[\ce{HBr}\], \[\ce{HI}\] (thermal stability)
