Class 10
NCERT
Chapter 1: Chemical Reactions and Equations
34 questions
Chapter 2: Acid,Bases and Salts
39 questions
Chapter 3: Metals and Non-metals
38 questions
Chapter 4: Carbon and its Compound
24 questions
Chapter 5: Periodic Classification of Elements
30 questions
Chapter 6: Life Processes
13 questions
Chapter 7: Control and Coordination
12 questions
Chapter 8: How do Organism Reproduce?
11 questions
Chapter 9: Heredity and Evolution
12 questions
Chapter 10: Light -Reflection and Refraction
34 questions
Chapter 11: The Human Eye and Colourful World
18 questions
Chapter 12: Electricity
49 questions
Chapter 13: Magnetic Effects of Electric Current
39 questions
Chapter 14: Sources of Energy
24 questions
Chapter 15: Our Environment
9 questions
Chapter 16: Sustainable Management of Natural Resources
7 questions
Solving time: 2 mins
Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
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Give one example of a decomposition reaction which is carried out:
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Three beakers labelled as A, B and C each containing 25 mL of water were taken. A small amount of , anhydrous and were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solutions contained in beakers A and B, whereas in case of beaker C, the temperature of the solution falls. Which one of the following statement(s) is(are) correct?
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| Question Text | Why does the colour of copper sulphate solution change when an iron nail is dipped in it? |
| Updated On | Feb 19, 2024 |
| Topic | Chemical Reactions and Equations |
| Subject | Science |
| Class | Class 10 |
| Answer Type | Text solution:1 Video solution: 39 |
| Upvotes | 3833 |
| Avg. Video Duration | 4 min |
