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प्रश्न
Name one metal which displaces copper from copper sulphate solution.
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उत्तर
Zinc
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संबंधित प्रश्न
What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?
What will happen if a strip of zinc is immersed in a solution of copper sulphate?
How would you show that silver is chemically less reactive than copper?
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place.
What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.
A copper plate was dipped in AgNO3 solution. After certain time, silver from the solution was deposited on the copper plate. State the reason why it happened. Give the chemical equation of the reaction involved.
Can we keep sodium immersed under water? Why?
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with water.
Write the equation for the reaction of:
Zinc with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Write the equation for the reaction of:
Iron with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Name one metal more reactive than hydrogen.
The metals which can produce amphoteric oxides are:
(a) sodium and aluminium
(b) zinc and potassium
(c) calcium and sodium
(d) aluminium and zinc
Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.
State and explain the reaction, if any, of the following metals with a solution of copper sulphate:
(a) Gold
(b) Copper
(c) Zinc
(d) Mercury
Which of the following reactions will not occur? Why not?
(a) MgSO4 (aq) + Cu (s) → CuSO4 (aq) + Mg (s)
(b) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)
(c) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)
Write the name and formula of a molecule made up of three atoms of oxygen.
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
- Good thermal conductivity
- Good electrical conductivity
- Ductility
- High melting point
