Advertisements
Advertisements
प्रश्न
When aqueous solutions of potassium iodide and lead nitrate are mixed an insoluble substance separates out. The chemical equation for the reaction involved is:
पर्याय
\[\ce{KI + PbNO_3 ->PbI + KNO3}\]
\[\ce{2KI + Pb(NO_3)2 ->PbI2 + 2KNO3}\]
\[\ce{KI + Pb(NO_3)2 ->PbI + KNO3}\]
\[\ce{KI + Pb(NO_3)2 ->PbI2 + 2KNO3}\]
Advertisements
उत्तर
\[\ce{2KI + Pb(NO_3)2 ->PbI2 + 2KNO3}\]
Explanation:
It will produce a yellow precipitate of lead iodide (PbI2).
APPEARS IN
संबंधित प्रश्न
What is wrong with the following chemical equation?
Mg + O → MgO
Correct and balance it.
How will you indicate a solution made in water in a chemical equation?
Fill in the following blank with suitable word:
Chemical equations are balanced to satisfy the law of ............
When a mixture of gases X and Y is compressed to 300 atm pressure and then passed over a catalyst consisting of a mixture of zinc oxide and chromium oxide (heated to a temperature of 300°C), then an organic compounds Z having the molecular formula CH4O is formed. X is a highly poisonous gas which is formed in appreciable amounts when a fuel burns in a limited supply of air; Y is a gas which can be made by the action of a dilute acid on an active metal; and Z is a liquid organic compound which can react with sodium metal to produce hydrogen gas.
(a) What are X, Y and Z?
(b) Write a balanced chemical equation of the reaction which takes place when X and Y combine to form Z. Indicate the conditions under which the reaction occurs.
Balance the following equation .
N2 + O2 → NO
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the volume of chlorine gas formed at S.T.P.
Give reason for the following:
Silver salts are kept in dark coloured bottles.
Balance the following simple equation:
KHCO3 → K2CO3 + H2O + CO2
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
2H2O + 2Cl2 → 2HCl + O2
Write an Explanation.
Balanced equations
