MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The donation of lone pair of electrons of CO carbon into the vacant orbital of metal atom results in _________ bond. |
| A. | sigma |
| B. | pi |
| C. | back |
| D. | synergic |
| Answer» B. pi | |
| 2. |
How is the M-C pi bond formed? |
| A. | Donation of electron pair of half-filled metal d orbital to empty bonding pi orbital of CO |
| B. | Donation of electron pair of filled metal d orbital to empty bonding pi orbital of CO |
| C. | Donation of electron pair of filled metal d orbital to empty antibonding pi orbital of CO |
| D. | Donation of electron pair of half-filled metal d orbital to empty antibonding pi orbital of CO |
| Answer» D. Donation of electron pair of half-filled metal d orbital to empty antibonding pi orbital of CO | |
| 3. |
The metal-carbon bond in metal carbonyls possesses only sigma character. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The following structure of a carbonyl compound is formed by which transition metal. |
| A. | Ni |
| B. | Cr |
| C. | Mn |
| D. | Co |
| Answer» E. | |
| 5. |
What is the geometry of pentacarbonyliron(0)? |
| A. | Square planar |
| B. | Tetrahedral |
| C. | Trigonal bipyramidal |
| D. | Octahedral |
| Answer» D. Octahedral | |