Advertisements
Advertisements
प्रश्न
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.
उत्तर
When sodium metal is treated with cold water, it gives a base sodium hydroxide and hydrogen gas is liberated which undergo explosive combustion reaction in an atmosphere of oxygen gas with a pop sound.
Hence, metal X is sodium, base Y is sodium hydroxide and gas Z is hydrogen gas.
`2"Na"("s") + 2"H"_2"O"("l") -> 2"NaOH"("aq") + "H"_2("g")`
APPEARS IN
संबंधित प्रश्न
Name two metals which will displace hydrogen from dilute acids, and two metals which will not.
What are amphoteric oxides?
Example of an amphoteric oxide is:
Generally, metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?
Stainless steel is very useful material for our life. In stainless steel, iron is mixed with
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is
Zinc sulphate forms a colourless solution in water. Will you observe any colour on adding copper turning in it?
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.
Write a chemical equation showing the ionic products formed on dissolving potassium hydroxide in water.
