An element A which is a part of common salt and kept under kerosene reacts with another element B of atomic number 17 to give a product C. When an aqueous solution of product C is electrolysed, then a compound D is formed and two gases are liberated.(a) What are A and B?
(b) Identify C and D.
(c) What will be the action of C on litmus solution? Why?
(d) State whether element B is a solid, liquid or gas at room temperature.
(e) Write formula of the compound formed when element B reacts with an element E having atomic number 5.
(a) A is sodium and B is chlorine.
Sodium is a part of common salt and kept under kerosene and chlorine has atomic number 17.
(b) C is sodium chloride and D is sodium hydroxide.
Sodium reacts with chlorine to give sodium chloride. Hence, D is sodium chloride. When an aqueous solution of sodium chloride is electrolyzed, then sodium hydroxide is formed along with hydrogen and chlorine gas.
(c) C (sodium chloride) will have no effect on litmus solution since it is neutral in nature.
(d) B (chlorine) is a gas at room temperature.
(e) The formula of the compound is EB3.
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