When hydrogen gas burns in presence of oxygen, water is formed and when water is electrolysed then hydrogen and oxygen gases are produced. State the kind of reaction that takes place in the first case.
Important Questions on Chemical Reactions and Equations
When hydrogen gas burns in presence of oxygen, water is formed and when water is electrolysed then hydrogen and oxygen gases are produced. State the kind of reaction that takes place in the second case.
In the experimental set-up for electrolysis of water, hydrogen and oxygen gases are produced at the cathode and anode respectively. Mention the ratio of the volumes of hydrogen and oxygen gases.
What is observed when a solution of potassium iodide is added to a solution of lead nitrate taken in a test tube?
A solution of potassium iodide is added to a solution of lead nitrate taken in a test tube. What type of reaction is this?
A solution of potassium iodide is added to a solution of lead nitrate taken in a test tube. Write a balanced equation to represent the reaction.
When lead nitrate powder is heated, which colour fumes are evolved? Also, name the gas evolved.
State three applications of a decomposition reaction.
With the help of an activity, show that the reaction between calcium oxide (lime) and water is an exothermic reaction.
