MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your DSAT knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The nitrogen atom has 7 protons and 7 electrons,The nitride ion will have |
| A. | 10 protons and 7 electrons |
| B. | 7 protons and 10 electrons |
| C. | 4 protons and 7 electrons |
| D. | 4 protons and 10 electrons |
| Answer» C. 4 protons and 7 electrons | |
| 2. |
Electromagnetic radiation with maximum wavelength is |
| A. | ultraviolet |
| B. | radio waves |
| C. | x-rays |
| D. | infrared |
| Answer» C. x-rays | |
| 3. |
Which one is the pure element |
| A. | glass |
| B. | cement |
| C. | sodium |
| D. | None of these |
| Answer» D. None of these | |
| 4. |
The difference between a nuclear reactor and atomic bomb is that ___________ |
| A. | no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction |
| B. | the chain reaction in nuclear reactor is controlled |
| C. | the chain reaction in nuclear reactor is not controlled |
| D. | no-chain reaction takes place in atomic bomb while it takes place in nuclear reactor |
| Answer» C. the chain reaction in nuclear reactor is not controlled | |
| 5. |
How many moles are there in 140g of Si (atomic mass of silicon is 28) |
| A. | 5 |
| B. | 10 |
| C. | 28 |
| D. | 140 |
| Answer» B. 10 | |