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प्रश्न
From the knowledge of activity series, name a metal which shows the following properties:
It displaces hydrogen from hot water.
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उत्तर
Magnesium
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संबंधित प्रश्न
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
A small piece of calcium metal is put into a small trough containing water. There is effervescence and white turbidity is formed.
Write an equation for the reaction.
Thin strips of magnesium, copper, and iron are taken.
Write down what happens when these metals are treated as follows:
- Heated in presence of air
- Heated with dil.HCl
- Added to an aqueous solution of zinc sulphate.
Select the odd one out and justify your answer.
SO2, H2S, NH3, and CO3
Which metal gives hydrogen with all of the following: water, acids, alkalis?
Which of the following metals does not give hydrogen with acids?
What do you observe when dilute sulphuric acid is added to Zinc granules.
Using dilute sulphuric acid how would you differentiate between:
Sodium sulphide and sodium carbonate.
How would you identify the gaseous products evolved.
State why hydrogen is not prepared in the laboratory by the action of lead with dilute hydrochloric acid.
Name the following.
A metal which cannot be used for the preparation of hydrogen using dilute acids.
