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A metal X is stored under kerosene. When...

A metal X is stored under kerosene. When a small piece of it is left open in the air, it catches fire. When the product formed is dissolved in water it turns red litmus blue.
a. Name the metal X.
b. Write the chemical equation for the rection when it is exposed to air and when the product is dissoolved in water.
c. Explain the process by which the metal is obtaned from its molten chloride.

Text Solution

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a. Sodium
b. `4Na+O_(2)to2Na_(2)O`
`Na_(2)O+H_(2)Oto2NaOH`
c. The ore is subjected to electrolytic reduction. When electric current is passed thorugh molten NaCl, chlorine gas is released at anode and solid sodium metal is deposited at cathode.
At anode `2Cl^(-)toCl_(2)+2e^(-)`
At cathode : `Na^(+)+e^(-)toNa`
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