CBSE Class 10 Answered
Why should we RUB the magnesium ribbon before performing the experiment for proving chemical reaction
Asked by Hemchand s | 08 Mar, 2018, 07:06: PM
Expert Answer
Magnesium is a very reactive metal,
so when usually exposed to air it reacts with oxygen and a layer of magnesium oxide is deposited on it.
So before burning we clean it to remove the deposited oxide layer so that this layer should not interfere while performing experiment.
Answered by Varsha | 09 Mar, 2018, 06:56: AM
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