What happens when a base reacts with a metal?


The base has a bitter taste and a slippery texture. A base dissolved in water is called an alkali. When chemically reacting with acids, such compounds produce salts. Bases are known to turn blue on red litmus paper.

When a base reacts with a metal, hydrogen gas is produced. It burns with a pop sound when a burning candle is brought near the test tube’s mouth.

Metal + Base → Hydrogen + Salt

Reaction of base with metals examples

  • Sodium hydroxide, as it reacts with zinc metal, gives hydrogen gas & sodium zincate.

2 NaOH + Zn → H2 + Na2ZnO2

  • Sodium aluminate and hydrogen gas are formed when sodium hydroxide reacts with aluminium metal.

2NaOH + 2Al + 2H2O → 2NaAlO2 + 2H2

  • Sodium hydroxide gives hydrogen gas and sodium zincate when it reacts with zinc metal.

2NaOH + Zn → Na2ZnO2+ H2

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  1. Very informative site❤

  2. Divya Gokulnath is the best.
    Love u Divya mam.

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