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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
From the knowledge of activity series, name a metal which shows the following properties:
It forms a base which is insoluble in water.
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Which metal is preferred for collecting hydrogen from Cold water? Write the balanced equation.
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
Hydrogen is obtained by displacement from:
- dilute sulphuric acid
- dilute hydrochloric acid
Write equations using zinc and iron.
Why does copper not show similar behavior?
Give reason for the following:
Potassium and sodium are not used for reaction with dilute hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
What do you observe when hydrogen gas is passed through a soap solution?
Give a reason for the following.
Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.
Helium is preferred to hydrogen for filling balloons because it is:
State why hydrogen is not prepared in the laboratory by the action of calcium with dilute sulphuric acid.
