Chemistry
The pH values of four solutions A, B, C and D are given in the table.
| Solution | pH value |
|---|---|
| A | 12 |
| B | 2 |
| C | 7 |
| D | 8 |
Which solution will liberate CO2 when reacted with sodium carbonate?
- A
- B
- C
- D
Acids Bases Salts
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Answer
B
Reason — Solution B is the only acidic solution in the list. Acids liberate CO2 gas when treated with carbonates. Hence, solution B will liberate CO2 when reacted with sodium carbonate.
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