SC-1140
Properties of acids and alkalis
Lower Sec Science · Secondary 2 · Easy · Properties of acids and alkalis
Benzoic acid reacts with sodium carbonate to form sodium benzoate, water and carbon dioxide gas. Which test and observation correctly identify the gas?
Use standard gas tests.
Use standard gas tests.
- Bubble the gas through limewater; it turns milky.
- Place a glowing splint in the gas; it relights.
- Place a burning splint in the gas; it pops.
- Hold moist blue litmus paper in the gas; it turns red.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.