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प्रश्न
Hydrogen can be prepared with the metal zinc by using:
acid
Give an equation.
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उत्तर
\[\ce{Zn + 2HCl → ZnCl2 (dil{.}) + H2 \uparrow}\]
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संबंधित प्रश्न
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
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.
Choose the correct option:
Hydrogen is evolved by the action of cold dil. HNO3 on
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
Which metal is preferred for collecting hydrogen from steam? Write the balanced equation for the case.
What do you observe when hydrogen gas is passed through a soap solution?
Select the odd one out and justify your answer.
Zn, Fe, Mg, and Na
Which metal gives hydrogen with all of the following: water, acids, alkalis?
Using dilute sulphuric acid how would you differentiate between:
Copper and magnesium
How would you identify the gaseous products evolved.
State why hydrogen is not prepared in the laboratory by the action of calcium with dilute sulphuric acid.
