MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following may be an incorrect statement? |
| A. | Law of Definite Composition is also known as Law of Definite composition |
| B. | Mass can neither be created nor destroyed is Law of Conservation of Volume |
| C. | Antoine Lavoisier conducted many experiments regarding combustion |
| D. | Five basic laws are required to govern the combination of elements to form compounds |
| Answer» C. Antoine Lavoisier conducted many experiments regarding combustion | |
| 2. |
Which of the following is not a law of chemical combination? |
| A. | Law of Multiple Proportions |
| B. | Avogadro’s Law |
| C. | Law of Definite Proportion |
| D. | Law of Conservation of volume |
| Answer» E. | |
| 3. |
Who proposed that equal volumes of all gases at the same temperature & given pressure should contain an equal number of molecules? |
| A. | Antoine Lavoisier |
| B. | Joseph Proust |
| C. | Avogadro |
| D. | Joseph Louis |
| Answer» D. Joseph Louis | |
| 4. |
The volumes of hydrogen & oxygen when combined bear a simple ratio of 2:1.This is explained by ________ |
| A. | Law of Multiple Proportions |
| B. | Avogadro’s Law |
| C. | Law of Definite Proportion |
| D. | Gay Lussac’s Law of Gaseous Volumes |
| Answer» E. | |
| 5. |
Law of Definite Composition is also known as ________ |
| A. | Law of Multiple Proportions |
| B. | Avogadro’s Law |
| C. | Law of Definite Proportion |
| D. | Law of Conservation of Mass |
| Answer» D. Law of Conservation of Mass | |
| 6. |
Who proposed the Law of Definite Composition? |
| A. | Joseph Proust |
| B. | Lorenzo Romano |
| C. | Joseph Louis |
| D. | Antoine Lavoisier |
| Answer» B. Lorenzo Romano | |
| 7. |
What did Dalton propose? |
| A. | Law of Multiple Proportions |
| B. | Avogadro’s Law |
| C. | Law of Definite Composition |
| D. | Law of Conservation of Mass |
| Answer» B. Avogadro’s Law | |
| 8. |
What did Joseph Proust state regarding Law of Definite Proportions? |
| A. | A given mixture always contains absolutely the same proportion of elements by weight |
| B. | A given compound always contains absolutely the same proportion of moles by weight |
| C. | A given compound always contains absolutely the same proportion of elements by volume |
| D. | A given compound always contains absolutely the same proportion of elements by weight |
| Answer» E. | |
| 9. |
Who proposed Law of Conservation of Mass? |
| A. | Antoine Lavoisier |
| B. | Joseph Proust |
| C. | Lorenzo Romano |
| D. | Joseph Louis |
| Answer» B. Joseph Proust | |
| 10. |
How many basic laws are required to govern the combination of elements to form compounds? |
| A. | 6 |
| B. | 5 |
| C. | 4 |
| D. | 1 |
| Answer» C. 4 | |