Acids and Bases react with metals to form salt and hydrogen gas.

Acid/ Base + Metals → Salt + Hydrogen Gas


Example 1

When Zinc (Zn) reacts with dilute Sulphuric Acid (H 2 SO 4 ), it produces a salt called Zinc Sulphate (ZnSO 4 ) and Hydrogen Gas.

Zn(s) + H 2 SO 4 (aq) → ZnSO 4 (aq) + H 2 (g)



Example 2

When Sodium hydroxide (NaOH, a base) is heated with Zinc (Zn, a metal),it forms Sodium Zincate (Na 2 ZnO 2 , a salt) and Hydrogen Gas (H 2 ). This hydrogen gas produces a pop sound

2NaOH (aq) +Zn (s) →Na 2 ZnO 2 (aq) + H 2 (g)

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo