Gk Questions with AnswersChemistry General Knowledge Questions and Answers
| 5. | Which of the following is used in aerated drinks? | ||
|---|---|---|---|
| A. Potassium carbonate | |||
| B. Sodium bicarbonate | |||
| C. Sodium carbonate | |||
| D. Calcium carbonate | |||
| Answer | ||
|
| 6. | Borax is one of the constituents in | ||
|---|---|---|---|
| A. Pyrex glass | |||
| B. Hard glass | |||
| C. Safety glass | |||
| D. Flint glass | |||
| Answer | ||
|
| 7. | Bleaching powder is manufactured by using | ||
|---|---|---|---|
| A. Bachmann’s plant | |||
| B. Rotator kiln | |||
| C. Contact chamber | |||
| D. Solvay tower | |||
| Answer | ||
|
| 8. | The percentage of cobalt in cobalt steel is | ||
|---|---|---|---|
| A. 5% | |||
| B. 10% | |||
| C. 20% | |||
| D. 35% | |||
| Answer | ||
|