Gk Questions with AnswersChemistry MCQ Quiz Questions with Answers
| 5. | Soda water contains | ||
|---|---|---|---|
| A. Carbon dioxide | |||
| B. Sulphuric acid | |||
| C. Carbonic acid | |||
| D. Nitrous acid | |||
| Answer | ||
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| 6. | Sodium metal is kept under | ||
|---|---|---|---|
| A. Water | |||
| B. Alcohol | |||
| C. Petrol | |||
| D. Kerosene | |||
| Answer | ||
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| 7. | Which one among the following is the most unreactive gas? | ||
|---|---|---|---|
| A. Nitrogen | |||
| B. Carbon dioxide | |||
| C. Oxygen | |||
| D. Hydrogen | |||
| Answer | ||
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| 8. | An element is best characterized by its | ||
|---|---|---|---|
| A. Atomic number | |||
| B. Atomic volume | |||
| C. Atomic weight | |||
| D. Electronic configuration | |||
| Answer | ||
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