Element A is Sodium because it will burn with a golden flame in the air.
Element B is Chlorine for its atomic number is 17.
Product C is Sodium Chloride. The reaction can be expressed as
2Na +Cl2 → 2NaCl
On electrolysis of aqueous NaCl solution, the compound D, sodium hydroxide(NaOH), is formed. The equation can be written as
2NaCl + 2H2O → 2NaOH + Cl2 + H2
- A is Soadium (Na)
- B is Chlorine(Cl)
- C is Sodium chloride (NaCl)
- D is Sodium hydroxide (NaOH)