Advertisements
Advertisements
प्रश्न
Write a chemical equation showing the ionic products formed on dissolving potassium hydroxide in water.
Advertisements
उत्तर
The following equation describes how potassium hydroxide reacts with water when it dissolves in it.
\[\ce{KOH(s) + H2O ->K+(aq) + OH-(aq)}\]
APPEARS IN
संबंधित प्रश्न
Give two examples of amphoteric oxides.
Diamond : electric insulator : : _______ : electric conductor
Example of an amphoteric oxide is:
Which of the following metals liberate hydrogen with 5% HNO3?
(i) Cu
(ii) Zn
(iii) Mn
(iv) Mg
Silver articles become black on prolonged exposure to air. This is due to the formation of
When a metal X is treated with cold water, it gives a basic salt Y with molecular formula XOH (Molecular mass = 40) and liberates a gas Z which easily catches fire. Identify X, Y and Z and also write the reaction involved.
Which of the following reacts with cold water vigorously?
Material: Copper wire, Iron nail, Beaker or Big test tube.
Chemicals: Ferrous Sulphate and Copper Sulphate Solution.
- Which reaction you will study with the help of the above material and solutions? Draw the diagram of the experiment arrangement.
- How do you identify that the reaction is carried out?
- Which type of reaction did you observe?
Answer the questions based on the figure below:
- Which experiment setup is demonstrated in the figure?
- What do you conclude after the reactions? Name reaction.
Answer the questions based on the figure below:
- Which reaction is shown in the figure?
- Which gas is evolved in the reaction?
- Give an example of reactants that rapidly show this reaction. Give equations.
- Give an example of reactants that do not react rapidly.
- In what condition will reactants of (c) part react? Give equation.
