CBSE Class 8 Answered
Explain an experiment by taking a suitable example to show that oxides of metals are basic in nature.
Asked by Topperlearning User | 30 Apr, 2014, 03:40: PM
Expert Answer
We take a metal-oxide e.g. magnesium oxide in a test tube. Now we add a little water it and shake it. We will divide this solution in two parts and test it with blue litmus paper and red litmus paper. When we dip blue litmus paper to one of the test tubes containing magnesium oxide solution then there is no change in colour. When we dip red litmus paper to another test tube containing magnesium oxide solution then we see that red litmus paper turns blue. We know that only basic substances turn red litmus to blue. Since magnesium oxide solution turns red litmus to blue, therefore, it is basic in nature.
Answered by | 30 Apr, 2014, 05:40: PM
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