CH-1125
Neutralisation
Chemistry · Secondary 4 · Medium · Neutralisation
Aqueous ammonium chloride is heated with aqueous sodium hydroxide. A piece of moist red litmus paper is held at the mouth of the test tube.
What is the gas produced and what colour change is seen on the litmus paper?
What is the gas produced and what colour change is seen on the litmus paper?
- ammonia, red to blue
- ammonia, blue to red
- chlorine, red to white
- chlorine, blue to red
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