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प्रश्न
Name the following.
A metal which cannot be used for the preparation of hydrogen using dilute acids.
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उत्तर
Lead (Pb)
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संबंधित प्रश्न
Hydrogen can be prepared with the metal zinc by using:
acid
Give an equation.
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Give an equation to express the reaction between:
Calcium and water
A small piece of calcium metal is put into a small trough containing water. There is effervescence and white turbidity is formed.
What do you observe when a few drops of red litmus solution are added to the turbid solution.
Thin strips of magnesium, copper, and iron are taken.
Arrange these metals in descending order of reactivity.
Choose the correct option:
Hydrogen is evolved by the action of cold dil. HNO3 on
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?
Choose terms from the options given in brackets to complete this sentence.
Sodium ………………. reacts smoothly with cold water.
(metal, amalgam, in the molten state)
Correct the following statement:
Conc. H2SO4 reacts with zinc to liberate hydrogen.
