MCQOPTIONS
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MCQOPTIONS
This section includes 29 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Among the halogens the rare element is |
| A. | Fluorine |
| B. | Chlorine |
| C. | Astatine |
| D. | Iodine |
| Answer» D. Iodine | |
| 2. |
The colour of chlorine gas is |
| A. | Pale yellow |
| B. | Freenish yellow |
| C. | Reddish brown |
| D. | Grayish black |
| Answer» C. Reddish brown | |
| 3. |
Vander Waals forces are stronger in |
| A. | F2 |
| B. | Cl2 |
| C. | Br2 |
| D. | I2 |
| Answer» E. | |
| 4. |
The most powerful oxidizing agent among the halogens is |
| A. | F2 |
| B. | Cl2 |
| C. | Br2 |
| D. | I2 |
| Answer» B. Cl2 | |
| 5. |
Which of the following statements is incorrect about fluorine |
| A. | Fluorine is restricted to -1 oxidation state |
| B. | Fluorine follows octet rule and as well as extended octet rule |
| C. | Fluorine has lowest dissociation energy among the halogens |
| D. | Both b and c |
| Answer» E. | |
| 6. |
The halogen which reacts spontaneously with gold (Au) to form Au+3 is |
| A. | F2 |
| B. | Cl2 |
| C. | Br2 |
| D. | I2 |
| Answer» C. Br2 | |
| 7. |
Which one of the following is the weakest acid in water |
| A. | HF |
| B. | HCI |
| C. | HBr |
| D. | HI |
| Answer» B. HCI | |
| 8. |
The halogen which reacts very slowly with halogen is |
| A. | Fluorine |
| B. | Chlorine |
| C. | Bromine |
| D. | Iodine |
| Answer» E. | |
| 9. |
Which of the following represents the correct electronic configuration of VII A group elements in the ground state? |
| A. | Ns2p2 |
| B. | Ns2p4 |
| C. | Ns2p5 |
| D. | Ns2p6 |
| Answer» D. Ns2p6 | |
| 10. |
The halogen having highest electron affinity is |
| A. | Fluorine |
| B. | Chlorine |
| C. | Bromine |
| D. | Iodine |
| Answer» C. Bromine | |
| 11. |
Bromine can be liberated from KBr solution by the action of |
| A. | Iodine solution |
| B. | Chlorine |
| C. | NaCl |
| D. | Ki |
| Answer» C. NaCl | |
| 12. |
Bleaching powder is an example of |
| A. | Normal salt |
| B. | Double salt |
| C. | Mixed salt |
| D. | Complex |
| Answer» D. Complex | |
| 13. |
Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction? |
| A. | Cl2O |
| B. | ClO2 |
| C. | Cl2O6 |
| D. | Cl2O7 |
| Answer» C. Cl2O6 | |
| 14. |
Which of the following oxides of iodine is used for quantitative analysis of CO? |
| A. | I2O4 |
| B. | I4O2 |
| C. | I2O5 |
| D. | All are equally useful |
| Answer» D. All are equally useful | |
| 15. |
Which of the halogen has highest electronegativity? |
| A. | Fluorine |
| B. | Chlorine |
| C. | Bromine |
| D. | Iodine |
| Answer» B. Chlorine | |
| 16. |
Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is |
| A. | Displacement reaction |
| B. | Double displacement reaction |
| C. | Disproportionation reaction |
| D. | Reduction reaction |
| Answer» D. Reduction reaction | |
| 17. |
Which of the following statements is incorrect about halogens? |
| A. | All are non-metals |
| B. | All the halogens have electronic conviguration ns2p5 |
| C. | They have high electron attinity and ionization energy |
| D. | All the halogens react with noble gases to form their halides |
| Answer» E. | |
| 18. |
Which of the halogen can displace other three elements? |
| A. | Flourine |
| B. | Chlorine |
| C. | Iodine |
| D. | Bromine |
| Answer» B. Chlorine | |
| 19. |
The chemical formula of sodium hypochlorite is |
| A. | NaCLO |
| B. | NaClO2 |
| C. | NaClO3 |
| D. | NaClO4 |
| Answer» B. NaClO2 | |
| 20. |
Which of the following is the weakest reducing agent? |
| A. | HF |
| B. | HBr |
| C. | HC? |
| D. | HI |
| Answer» B. HBr | |
| 21. |
Bleaching powder is not used for bleaching |
| A. | Cotton |
| B. | Costly fabrics |
| C. | Linen |
| D. | Paper pulb |
| Answer» C. Linen | |
| 22. |
Fluorine can react with |
| A. | Xe |
| B. | Kr |
| C. | Rn |
| D. | All of the above |
| Answer» E. | |
| 23. |
Which of the following is not use of compounds of Fluorine |
| A. | SbF3 is used for manufacture of pottery |
| B. | Sodium fluoroacetate is a rat poison |
| C. | Cu F2 is used in ceramic industry |
| D. | None of the above |
| Answer» E. | |
| 24. |
In which compound of Xenon the oxidation state of Xenon is + 6. |
| A. | XeF4 |
| B. | XeOF4 |
| C. | XeOF2 |
| D. | Na4XeO6 |
| Answer» C. XeOF2 | |
| 25. |
Photographic plates are coated with a thin film of : |
| A. | AgNO3 |
| B. | AgI |
| C. | AgCl |
| D. | AgBr |
| Answer» E. | |
| 26. |
The anhydride of HCIO4 is: |
| A. | Cl2O |
| B. | Cl2O6 |
| C. | ClO2 |
| D. | Cl2O7 |
| Answer» E. | |
| 27. |
Indicate the correct statement: |
| A. | Cl2 is the strongest oxidizing agent |
| B. | I2 is a volatile solid |
| C. | Br2 is more reactive than Cl2 |
| D. | Cl2 is insoluble in water |
| Answer» C. Br2 is more reactive than Cl2 | |
| 28. |
Which one of the following halogens is present in Teflon: |
| A. | I2 |
| B. | Br2 |
| C. | Cl2 |
| D. | F2 |
| Answer» E. | |
| 29. |
Which is the paramagnetic oxide of chlorine: |
| A. | Cl2O7 |
| B. | Cl2O6 |
| C. | ClO2 |
| D. | All |
| Answer» D. All | |