MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Hexaaquatitanium(III) chloride is a coloured compound that loses its colour on heating. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The complex [Co(H2O)6]3+ absorbs the wavelength of light corresponding to orange colour. Predict the colour of the coordination compound based on this information. |
| A. | Red |
| B. | Yellow |
| C. | Blue |
| D. | Colourless |
| Answer» D. Colourless | |
| 3. |
As the crystal field splitting energy in octahedral field increases, the wavelength of light absorbed _________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | May increase or decrease |
| Answer» C. Remains the same | |
| 4. |
Tetrahedral fields can easily form low spin complexes. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
What will be the electronic configuration of d5 in terms of t2g and eg in an octahedral field when o<P, where P is the energy required for pairing of electrons in a single orbital? |
| A. | t<sub>2g</sub><sup>5</sup> e<sub>g</sub><sup>0</sup> |
| B. | t<sub>2g</sub><sup>2</sup> e<sub>g</sub><sup>3</sup> |
| C. | t<sub>2g</sub><sup>3</sup> e<sub>g</sub><sup>2</sup> |
| D. | t<sub>2g</sub><sup>0</sup> e<sub>g</sub><sup>5</sup> |
| Answer» D. t<sub>2g</sub><sup>0</sup> e<sub>g</sub><sup>5</sup> | |
| 6. |
Which of the following ligands is most likely to form high spin complexes in octahedral fields? |
| A. | Cl<sup> </sup> |
| B. | OH<sup> </sup> |
| C. | C<sub>2</sub>O<sub>4</sub><sup> </sup> |
| D. | CN<sup> </sup> |
| Answer» B. OH<sup> </sup> | |
| 7. |
Identify the correct relation between o and t, where o denotes crystal field splitting in octahedral complexes and t denotes crystal field splitting in tetrahedral complexes. |
| A. | <sub>o</sub> < <sub>t</sub> |
| B. | <sub>o</sub> > <sub>t</sub> |
| C. | <sub>o</sub> = <sub>t</sub> |
| D. | <sub>o</sub> <sub>t</sub> |
| Answer» C. <sub>o</sub> = <sub>t</sub> | |
| 8. |
Identify the correct order of decreasing field strength of the neutral ligands. |
| A. | CO, en, NH<sub>3</sub>, H<sub>2</sub>O |
| B. | CO, en, H<sub>2</sub>O, NH<sub>3</sub> |
| C. | en, CO, NH<sub>3</sub>, H<sub>2</sub>O |
| D. | en, CO, H<sub>2</sub>O, NH<sub>3</sub> |
| Answer» B. CO, en, H<sub>2</sub>O, NH<sub>3</sub> | |
| 9. |
By how much percentage does the energy of eg orbitals increase by from the average field splitting energy in octahedral complexes? |
| A. | 40% |
| B. | 45% |
| C. | 50% |
| D. | 60% |
| Answer» E. | |
| 10. |
Identify the correct order of increasing field strength of the ligands. |
| A. | SCN<sup> </sup>, NH<sub>3</sub>, NCS<sup> </sup>, CN<sup> </sup> |
| B. | NCS<sup> </sup>, SCN<sup> </sup>, NH<sub>3</sub>, CN<sup> </sup> |
| C. | SCN<sup> </sup>, NCS<sup> </sup>, NH<sub>3</sub>, CN<sup> </sup> |
| D. | NCS<sup> </sup>, NH<sub>3</sub>, SCN<sup> </sup>, CN<sup> </sup> |
| Answer» D. NCS<sup> </sup>, NH<sub>3</sub>, SCN<sup> </sup>, CN<sup> </sup> | |
| 11. |
Which of the following orbitals does not belong to t2g orbitals? |
| A. | d<sub>xy</sub> |
| B. | d<sub>yz</sub> |
| C. | d<sub>xz</sub> |
| D. | d<sub>z</sub><sup>2</sup> |
| Answer» E. | |
| 12. |
In CFT, which of the following ligands will be treated as point dipoles? |
| A. | Cl |
| B. | NO<sub>2</sub> |
| C. | CN |
| D. | NO |
| Answer» E. | |
| 13. |
The crystal field theory considers the metal-ligand bond to be a _______ bond. |
| A. | covalent |
| B. | ionic |
| C. | polar |
| D. | hydrogen |
| Answer» C. polar | |