SC-1135
Neutralisation
Lower Sec Science · Secondary 2 · Easy · Neutralisation
A strip of zinc is placed into dilute hydrochloric acid. Bubbles of gas are produced. Which test shows that the gas is hydrogen?
- The gas relights a glowing splint.
- The gas turns damp blue litmus paper red.
- The gas extinguishes a burning splint silently.
- A lighted splint produces a ‘pop’ sound with the gas.
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