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What happens when a. Sodium metal is d...

What happens when
a. Sodium metal is dropped in water?
b. Sodium metal is heated in free supply of air?
c. Sodium peroxide dissolves in water?

Text Solution

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Sodium hydroxide in formed. The metal catches fire. Actually, the hydrogen evolved is highly combustible and it catches fire.
`2Na+2H_(2)Oto2NaOH+H_(2)`
(ii) Sodium peroxide formed
`2Na+O_(2)toNa_(2)O_(2)`
(iii) `2Na_(2)O_(2)+2H_(2)Oto4NaOH+O_(2)`.
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