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. |
What is the stock notation of mercuric chloride? |
| A. | Mercury |
| B. | Mercuric chloride |
| C. | Chloride |
| D. | Mercury (II) chloride |
| Answer» E. | |
| 2. |
What is the stock notation of cuprous oxide? |
| A. | copper oxide |
| B. | copper (I) oxide |
| C. | copper 1 oxide |
| D. | copper 2 oxide |
| Answer» C. copper 1 oxide | |
| 3. |
What is the average oxidation state of S in Na2S6O6? |
| A. | 5 |
| B. | 0 |
| C. | 5/2 |
| D. | 2 |
| Answer» D. 2 | |
| 4. |
What is the oxidation state of N in NH4NO3 (in order)? |
| A. | -3, 5 |
| B. | 5, -3 |
| C. | 5 |
| D. | -3 |
| Answer» B. 5, -3 | |
| 5. |
What is the oxidation state of C in C3O2? |
| A. | 0 |
| B. | 2 |
| C. | -2 |
| D. | 0, 2, 2 |
| Answer» E. | |
| 6. |
What is the oxidation state of Cr in CrO5? |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» E. | |
| 7. |
In NaH, the oxidation state of hydrogen is _______________ |
| A. | 2 |
| B. | 1 |
| C. | -1 |
| D. | 0 |
| Answer» D. 0 | |
| 8. |
Helium element has an Oxidation state of ____________ |
| A. | 2 |
| B. | 0 |
| C. | 1 |
| D. | -1 |
| Answer» C. 1 | |
| 9. |
The oxidation number of oxygen in Ozone is 1, -1 and 0. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 10. |
Can 1/2 be an oxidation number? |
| A. | yes |
| B. | no |
| C. | may be |
| D. | cannot say |
| Answer» B. no | |