Chemistry
Grade-8
Easy
Question
When a few nails of iron are dropped in the blue coloured copper sulphate solution, blue colour of copper sulphate solution fade in the below chemical change. Why does it happen?
- Due to formation of green FeSO4
- Due to formation of ferrous oxide
- Due to the formation of brown colour (FeSO)4
- The copper deposits in the reaction
Hint:
More reactive metal can displace the less reactive metal in its solution.
The correct answer is: Due to formation of green FeSO4
When a few nails of iron are dropped in the blue-colored copper sulfate solution, the blue color of the copper sulfate solution fade in the below chemical change due to the formation of green (FeSO)4.
- Iron nails are made up of iron metal only.
- As copper sulfate is blue colored salt, its aqueous solution is blue in color.
- As we know, more reactive metal can displace the less reactive metal in its solution.
Related Questions to study
Chemistry
The following properties are all characteristics of chemical reaction except:
The following properties are all characteristics of chemical reaction except:
ChemistryGrade-8
Chemistry
What does the sign '↑' indicate in a chemical equation?
What does the sign '↑' indicate in a chemical equation?
ChemistryGrade-8
Chemistry
The chemical reaction which take place by the action of light is called as ____
The chemical reaction which take place by the action of light is called as ____
ChemistryGrade-8
Chemistry
The indication/s which proves that the chemical reactions have occurred is/are:
The indication/s which proves that the chemical reactions have occurred is/are:
ChemistryGrade-8
Chemistry
Copper carbonate decomposes by heating to give products as A and B. Identify the products ‘A’ and ‘B’ from the following.
Copper carbonate decomposes by heating to give products as A and B. Identify the products ‘A’ and ‘B’ from the following.
ChemistryGrade-8
Chemistry
Which of the following compound reacts in water only?
Which of the following compound reacts in water only?
ChemistryGrade-8
Chemistry
Why the silver nitrate solution is always kept in the brown bottle in the laboratory?
Why the silver nitrate solution is always kept in the brown bottle in the laboratory?
ChemistryGrade-8
Chemistry
During the chemical reactions,
During the chemical reactions,
ChemistryGrade-8
Chemistry
Which out of the following statements is true about the above given reaction?
2NaCl→2Na+Cl2
Which out of the following statements is true about the above given reaction?
2NaCl→2Na+Cl2
ChemistryGrade-8
Chemistry
The colour of crystals of ferrous sulphate is:
The colour of crystals of ferrous sulphate is:
ChemistryGrade-8
Chemistry
When water is added to calcium oxide solution, calcium hydroxide is obtained as product of this reaction.
Identify the correct statement regarding the above experiment:
When water is added to calcium oxide solution, calcium hydroxide is obtained as product of this reaction.
Identify the correct statement regarding the above experiment:
ChemistryGrade-8
Chemistry
What is the common name for calcium oxide?
What is the common name for calcium oxide?
ChemistryGrade-8
Chemistry
Which of the following picture depicts the chemical reaction?
Which of the following picture depicts the chemical reaction?
ChemistryGrade-8
Chemistry
Which of the following substances formed during the chemical reaction?
Which of the following substances formed during the chemical reaction?
ChemistryGrade-8
Chemistry
How many reactants are participating in the following chemical reaction?
How many reactants are participating in the following chemical reaction?
ChemistryGrade-8
