A metal (E) 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 to blue
a) Name the metal (E).
b) Write the chemical equation for the reaction when it is exposed to air and when the product
is dissolved in water.
c) Explain the process by which the metal is obtained from its molten chloride
Answers
Hyy Dude
-this metal is sodium
-2Na+2H2O=2NaOH+H2(water exposure)
-2Na+O2=2NaO+heat(exposed to air)
-electrolysis of sodium chloride:
-brine, a saturated NaCl solution, is the electrolyte
-Hydrogen(H+), Chlorine(Cl-), Sodium(Na+), and Hydroxide(OH-) ions are formed
-sodium goes to the negative steel cathode, while chlorine goes to the positive carbon anode
-the electrolytic cell used for this process is called a Down's electrolytic cell
Hope it's helps you
Plz marked in brainlest answer
Answer:
a) sodium
b) 4Na + O2 → 2Na2O
Na2O + H2O → 2NaOH
c) The metal is obtained by electrolysis of molten metal chloride (NaCl)
At cathode [(-) charged electrode] → Na is deposited.
At Anode [(+) electrode] → Cl2 is liberated.
At cathode: Na+ + e- → Na
At Anode: 2Cl- → Cl2 + 2e-
hope it helps you,
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