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प्रश्न
Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
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उत्तर
Magnesium and aluminium are two metals that can displace hydrogen from dilute hydrochloric acid.
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संबंधित प्रश्न
What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.
The solution of Aluminium sulphate in water is .....................
(a) Green
(b) Colourless
(c) Pink
(d) Blue
A copper coin is kept immersed in a solution of silver nitrate for some time. What will happen to the coin and the colour of the solution?
Name the metal which has been placed just below copper in the reactivity series.
Write equation for the reaction of sodium with oxygen.
Write equation for the reaction of magnesium with oxygen.
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.
How do non-metals react with hydrogen? Explain with an example.
Can we keep sodium immersed under water? Why?
What is the action of water on sodium ? Write equation of the chemical reaction involved.
You are given samples of three metals − sodium, magnesium and copper. Suggest any two activities to arrange them in order of their decreasing reactivities.
What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with eater.
The elements whose oxides can turn phenolphthalein solution pink are:
(a) Na and K
(b) K and C
(c) Na and S
(d) K and P
Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe
An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
(a) What is the nature of the oxide E2O?
(b) State whether element E is a metal or a non-metal.
(c) Give one example of an element like E.
Rewrite the following statement by selecting the correct option.
A solution of Al2(SO4)3 in water is _____________.
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
Find the odd one out:
