MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
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 | |
| 2. |
Which of the following is the incorrect statement about Zeise’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’s salt longer than that of free ethylene molecule | |
| 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. |
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 | |
| 5. |
What is the oxidation state of molybdenum in [η7-tropylium) Mo(CO)3]+? |
| A. | +2 |
| B. | +1 |
| C. | 0 |
| D. | -1 |
| Answer» D. -1 | |