Advertisements
Advertisements
प्रश्न
Give a balanced equation for the preparation of two different insoluble lead salts from their salt solutions by double decomposition precipitation.
Advertisements
उत्तर
(i) \[\ce{\underset{\text{lead nitrate sol.}}{Pb[NO3]} + \underset{\text{sodium sulphate sol.}}{Na2SO4}->\underset{\text{soluble salt sod. nitrate}}{2NaNO3} + \underset{\text{ppt. lead sulphate}}{PbSO4 v}}\]
(ii) \[\ce{Pb[NO3]2 + \underset{\text{sodium chloride sol.}}{2NaCl}->\underset{\text{sodium nitrate (soluble)}}{2NaNO3} + \underset{\text{lead (II) chloride ppt.}}{PbCl2 v}}\]
APPEARS IN
संबंधित प्रश्न
The reaction of iron nail with copper sulphate solution is ______ reaction.
State the type of reactions for the following represent and balance the ones that are not balanced.
2KClO3→ 2KCl + 3O2
Decomposition reactions can occur by heat.
Give two balanced reactions for each.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Lead nitrate
Give an example of a photochemical decomposition reaction.
State the double decomposition – neutralization reaction with a suitable representation.
Complete the statement by filling in the blank with the correct word:
Direct combination reaction of sulphur dioxide with water gives ________.
Complete the statement by filling in the blank with the correct word:
The neutral gas evolved when lead nitrate undergoes thermal decomposition is _________.
Give a balanced equation for the following type of reaction:
A thermal decomposition reaction of a salt – which results in the formation of nitrogen gas.
Match the chemical reactions in List I with the appropriate answer in List II.
| List I | List II |
| 1. \[\ce{AB⇌[heat]A + B}\] | A: Double decomposition |
| 2. \[\ce{AB->A + B}\] | B: Thermal dissociation |
|
3. \[\ce{X+Y- + AB+B- ->X+B- + A+Y-}\] |
C: Endothermic reaction |
| 4. \[\ce{X + YZ->XZ + Y}\] | D: Displacement reaction |
| 5. \[\ce{X + Y->[heat]XY - \Delta}\] | E: Decomposition reaction |
