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 halogen exists as a solid at room temperature? |
| A. | Chlorine |
| B. | Fluorine |
| C. | Iodine |
| D. | Bromine |
| Answer» C. Iodine | |
| 2. |
Who discovered the element chlorine? |
| A. | Joseph Priestley |
| B. | Antoine Lavoisier |
| C. | Humphry Davy |
| D. | Wilhelm Scheele |
| Answer» E. | |
| 3. |
What is the atomicity of halogens? |
| A. | Monoatomic |
| B. | Diatomic |
| C. | Triatomic |
| D. | Octatomic |
| Answer» C. Triatomic | |
| 4. |
What is the correct order of enthalpy of dissociation of halogens? |
| A. | F<sub>2</sub> > Cl<sub>2</sub> > Br<sub>2</sub> > I<sub>2</sub> |
| B. | Cl<sub>2</sub> > Br<sub>2</sub> > F<sub>2</sub> > I<sub>2</sub> |
| C. | Cl<sub>2</sub> > F<sub>2</sub> > Br<sub>2</sub> > I<sub>2</sub> |
| D. | F<sub>2</sub> > Br<sub>2</sub> > Cl<sub>2</sub> > I<sub>2</sub> |
| Answer» C. Cl<sub>2</sub> > F<sub>2</sub> > Br<sub>2</sub> > I<sub>2</sub> | |
| 5. |
What is the general electronic configuration of the halogens? |
| A. | ns<sup>2</sup>np<sup>5</sup> |
| B. | ns<sup>2</sup>np<sup>2</sup> |
| C. | ns<sup>2</sup>np<sup>3</sup> |
| D. | ns<sup>2</sup>np<sup>4</sup> |
| Answer» B. ns<sup>2</sup>np<sup>2</sup> | |
| 6. |
Which of the following is not a mineral of fluorine? |
| A. | Fluorspar |
| B. | Cryolite |
| C. | Fluoroapatite |
| D. | Carnallite |
| Answer» E. | |
| 7. |
Halogens do not occur in the free state. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following halogen is radioactive? |
| A. | Fluorine |
| B. | Bromine |
| C. | Astatine |
| D. | Chlorine |
| Answer» D. Chlorine | |
| 9. |
Which of the following element is most reactive? |
| A. | Chlorine |
| B. | Fluorine |
| C. | Bromine |
| D. | Iodine |
| Answer» C. Bromine | |
| 10. |
Group 17 elements are also called halogens. |
| A. | True |
| B. | False |
| Answer» B. False | |