Single Answer MCQ
Q-00001998
Why is it important to clean a magnesium ribbon before burning it in air?
1
To remove impurities that may affect the reaction.
2
To make the ribbon look shiny.
3
To increase the weight of the ribbon.
4
To decrease the reactivity of magnesium.
Answer and Solution
Answer
A. To remove impurities that may affect the reaction.
Solution:
Cleaning the magnesium ribbon before burning it helps remove any impurities or oxides that may be present on the surface. These impurities can affect the reaction and the observation of the magnesium burning.
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