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Cut a small sodium metal plece into two ...

Cut a small sodium metal plece into two watch it.
a) What change occurred on the surface of sodium metal?
b) Write one word for the process of this type of decomposition.
c) Write down the equation for this

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a) Its shining lusture fades after some times
b) Corrosion of metals
c) 4Na (s) + O_2 (g) rarr 2Na_2O`
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V PUBLICATION-REACTIVITY SERIES AND ELECTROCHEMISTRY-QUESTION BANK
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  12. Take hot water and cold water in two test tubes. Add one drop of pheno...

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  13. Observe the figure of the galvanic coll given below. a) What are A a...

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  15. Three different galvanic cells are illustrated below. Hints: A, B and...

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