MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 12 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 is not a use of carbon tetrachloride? |
| A. | Manufacturing of refrigerants |
| B. | Manufacturing of pharmaceuticals |
| C. | Degreasing agent |
| D. | Insecticide |
| Answer» E. | |
| 2. |
Which of the following is not a harmful effect of DDT? |
| A. | It is non-biodegradable |
| B. | Cannot be metabolized by animals |
| C. | Highly toxic towards fish |
| D. | Causes air pollution |
| Answer» E. | |
| 3. |
Which of the following is not a characteristic of CHClF2? |
| A. | Non-toxic |
| B. | Non-flammable |
| C. | Non-corrosive |
| D. | Non-liquefiable |
| Answer» E. | |
| 4. |
Freon 12 is manufactured from the Swarts reaction of which compound? |
| A. | Dichloromethane |
| B. | Trichloromethane |
| C. | Tetrachloromethane |
| D. | Dichlorodifluoromethane |
| Answer» D. Dichlorodifluoromethane | |
| 5. |
Which of the following is not a freon? |
| A. | CCl<sub>3</sub>F |
| B. | CCl<sub>2</sub>F<sub>2</sub> |
| C. | CBr<sub>2</sub>F<sub>2</sub> |
| D. | CClF<sub>3</sub> |
| Answer» D. CClF<sub>3</sub> | |
| 6. |
Carbon tetrarchloride may indirectly cause skin cancer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following polyhalogen compounds in useful in extinguishing fires? |
| A. | Dichloromethane |
| B. | Trichloromethane |
| C. | Triiodomethane |
| D. | Tetrachloromethane |
| Answer» E. | |
| 8. |
What is the reason for iodoform to be used as an antiseptic? |
| A. | Due to its unpleasant odour |
| B. | Due to its melting point |
| C. | Due to its solubility in alcohol |
| D. | Due to the liberation of free iodine |
| Answer» E. | |
| 9. |
Chloroform was previously used as a general anaesthetic in surgery. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
The oxidation of trichloromethane results in the formation of a poisonous gas called ________ |
| A. | carbon monoxide |
| B. | carbonyl chloride |
| C. | hydrogen sulphide |
| D. | phosphine |
| Answer» C. hydrogen sulphide | |
| 11. |
Which of the following is an effect of exposure to low levels of dichloromethane in the air? |
| A. | Slightly impaired vision |
| B. | Dizziness |
| C. | Nausea |
| D. | Numbness in fingers |
| Answer» B. Dizziness | |
| 12. |
Which of the following is not a use of methylene chloride? |
| A. | Paint removal |
| B. | Propellant in aerosols |
| C. | Metal cleaning |
| D. | Antiseptic |
| Answer» E. | |