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 : (i) Name the metal E. (ii) Write the chemical equation for the reaction when it is exposed to air and when the product is dissolved in water. (iii) Explain the process by which the metal is obtained from its molten chloride.
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Answered by
179
-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
-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
Answered by
15
Answer:
Sodium Chloride
Explanation:
Exposed=2Na+O2=2NaO
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