Question

Activity
 Get a small piece of a thin strip or ribbon of magnesium & clean its tip with sandpaper.
 Bring the tip near a candle flame.
 It burns with a brilliant white light. When it is completely burnt it leaves behind a powdery ash.
 Now, collect the ash and mix it with a small amount of water.
 Stir the mixture well. Test the mixture with blue and red litmus papers.


Questions:
1. Does the ash look like the magnesium ribbon? Write the followed chemical reaction.
2. Does the mixture turn red litmus blue or Does the mixture turn blue litmus red?
3. On the basis of this test, how do you classify the aqueous solution or basic? Write the followed chemical reaction.
4. Write any two observations based on the above activity.
5. Also, write all the chemical reactions involved.

Answer 1

Answer:

1. no , 2Mg + O2 -- 2MgO.

2. red to blue.

3. basic.

4. Magnesium burns with a dazzling white flame , magnesium oxide solution is basic in nature.

5. 2Mg + O2 - 2MgO

Answer 2

Answer:

Explanation:

1. no , 2Mg + O2 -- 2MgO.

2. red to blue.

3. basic.

4. Magnesium burns with a dazzling white flame , magnesium oxide solution is basic in nature.

5. 2Mg + O2 - 2MgO