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 oxidation state of nitrogen in di-nitrogen trioxide? |
| A. | 1 |
| B. | +2 |
| C. | +3 |
| D. | +4 |
| Answer» D. +4 | |
| 2. |
What catalyst is used for oxidation of ammonia to produce nitric acid? |
| A. | Palladium hydride |
| B. | Sodium amalgam |
| C. | Platinum-Rhodium gauze |
| D. | Vanadium (V) oxide |
| Answer» D. Vanadium (V) oxide | |
| 3. |
Which of the following ions is the brown ring test useful for determining? |
| A. | NO2– |
| B. | NO2+ |
| C. | NO2 |
| D. | NO3– |
| Answer» E. | |
| 4. |
What shape is the HNO3 molecule in its gaseous state? |
| A. | Bent |
| B. | Linear |
| C. | Planar |
| D. | See Saw |
| Answer» D. See Saw | |
| 5. |
Which gas is released when copper chips are subjected to concentrated nitric acid? |
| A. | Nitrogen (I) oxide |
| B. | Nitrogen (II) oxide |
| C. | Nitrogen (III) oxide |
| D. | Nitrogen (IV) oxide |
| Answer» E. | |
| 6. |
What is the primary product of Haber-Bosch process? |
| A. | Ammonia |
| B. | Nitric acid |
| C. | Nitrous acid |
| D. | Pyridine |
| Answer» B. Nitric acid | |
| 7. |
Why does nitrogen show poor tendency towards catenation? |
| A. | N atom can form multiple pπ – pπ bonds |
| B. | Octet of N2 is complete unlike carbon |
| C. | The N ≡ N is unreactive at room temperature |
| D. | The N – N single bond is weaker and unstable |
| Answer» E. | |
| 8. |
What is the maximum covalency of the nitrogen atom? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» E. | |
| 9. |
What happens to the size of atoms of elements of p-block as we move from left to right in the same period? |
| A. | Size increases |
| B. | Size decreases |
| C. | Size does not change |
| D. | Size increases then decreases |
| Answer» C. Size does not change | |
| 10. |
Which of the following represents the general electronic configuration of an element belonging to the p-block of the periodic table? |
| A. | (n-2)f0(n-1)d0ns2 np0 -6 |
| B. | (n-2)f0(n-1)d1 – 10 ns2 np1- 6 |
| C. | (n-2)f0(n-1)d0 ns2np1-6 |
| D. | (n-2)f1- 14(n-1)d1- 10ns2np1- 6 |
| Answer» D. (n-2)f1- 14(n-1)d1- 10ns2np1- 6 | |