Activity 4.6 Let us investigate (Demonstration activity) (Page 51) What do you observe ? Class 7
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Activity 4.6 Let us investigate (Demonstration activity) (Page 51) Class 7
What do you observe? What effect does this solution have on blue and red litmus papers? Class 7
Answer:
- Magnesium ribbon burns with a dazzling white flame and changes into a white powder (ash). The solution is formed when some drops of water is added to it.
- The solution changes the colour of red litmus paper to blue.
Conclusion:
- Magnesium burns with oxygen in the air and produces magnesium oxide.
- The oxides of metals are generally basic in nature.