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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
Copper
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संबंधित प्रश्न
From the knowledge of activity series, name a metal which shows the following properties:
It displaces hydrogen from hot water.
Hydrogen can be prepared with the metal zinc by using:
acid
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.
Arrange these metals in descending order of reactivity.
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
Select the odd one out and justify your answer.
SO2, H2S, NH3, and CO3
Select the odd one out and justify your answer.
Fe, Zn, Cu and Mg
Select the odd one out and justify your answer.
Fe, Pb, Al and Zn
Which of the following metals does not give hydrogen with acids?
‘Magnesium reacts with very dilute nitric acid at low temperatures liberating hydrogen.’ Give reasons.
