Question

19. Ametal '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 to blue.

a) Name the metal 'X'.

b) Write the chemical equation for the reaction when it is exposed to air and when the
product is dissolved water
Explain the process by which the metal is obtained from its molten chloride.
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Answer 1

Answer:

Sodium or potassium can be

the metal

• K+O2 gives KO2

Answer 2

Answer: potassium

Explanation:

Potassium is the highest reactive metal which react with air and burn fastly