MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHICH_OF_THE_FOLLOWING_IS_THE_INCORRECT_STATEMENT_ABOUT_ZEISE‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_SALT??$# |
| A. | Zeise’s salt is diamagnetic |
| B. | Oxidation state of Pt in Zeis’s salt is +2 |
| C. | All the Pt-Cl bond length in Zeise’s salt are equal |
| D. | C-C bond length of ethylene moiety in Zeise’s salt longer than that of free ethylene molecule |
| Answer» D. C-C bond length of ethylene moiety in Zeise‚Äö√Ñ√∂‚àö√ë‚àö¬•s salt longer than that of free ethylene molecule | |
| 2. |
For_metal_olefin_complexes_(i)_[PtCl3(C2F4)]–_and_(ii)_[PtCl3(C2H4)]–,_which_of_the_following_is_the_correct_statement?$# |
| A. | carbon-carbon bond length is same both in (i) and (ii) |
| B. | carbon-carbon bond length in (i) is smaller |
| C. | carbon-carbon bond length in (ii) is smaller |
| D. | a metallacycle is formed in each complex |
| Answer» C. carbon-carbon bond length in (ii) is smaller | |
| 3. |
How many M — M bonds are present in [Cp Mo(CO3)]2?# |
| A. | 1 |
| B. | 2 |
| C. | 0 |
| D. | 4 |
| Answer» D. 4 | |
| 4. |
Which of the following complexes show easy oxidation? |
| A. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>Fe |
| B. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>Ru |
| C. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>Co |
| D. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>Co<sup>+</sup> |
| Answer» D. (‚âà√≠‚Äö√†√´<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>Co<sup>+</sup> | |
| 5. |
If complex [W(Cp)2(CO)2] follows 18e- rule. What is Hapticity of Cp? |
| A. | 5 and 5 |
| B. | 3 and 5 |
| C. | 3 and 3 |
| D. | 1 and 5 |
| Answer» C. 3 and 3 | |
| 6. |
Which of the following is the neutral complex which follows the 18- electron rule? |
| A. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Fe(CO)<sub>2</sub> |
| B. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)2Mo(CO)<sub>3</sub> |
| C. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>Co |
| D. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)2Re(η<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>) |
| Answer» E. | |
| 7. |
What is the oxidation state of molybdenum in [η7-tropylium) Mo(CO)3]+?$ |
| A. | +2 |
| B. | +1 |
| C. | 0 |
| D. | -1 |
| Answer» D. -1 | |
| 8. |
Which of the following complex is in which organic ligand is having only bond with metal? |
| A. | W(CH<sub>3</sub>)<sub>6</sub> |
| B. | K[PtCl<sub>3</sub>(C<sub>2</sub>H<sub>4</sub>)] |
| C. | (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>Fe |
| D. | (η<sup>5</sup>-C<sub>6</sub>H<sub>6</sub>)<sub>2</sub>Ru |
| Answer» B. K[PtCl<sub>3</sub>(C<sub>2</sub>H<sub>4</sub>)] | |
| 9. |
Which of the following complex has a highest oxidation state of metal? |
| A. | (η<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)<sub>2</sub>Cr |
| B. | Mn(CO)<sub>5</sub>Cl |
| C. | Na<sub>2</sub>[Fe(CO)<sub>4</sub>] |
| D. | K[Mn(CO)<sub>5</sub>] |
| Answer» D. K[Mn(CO)<sub>5</sub>] | |