MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of copper atom? |
| A. | 108 pm |
| B. | 127 pm |
| C. | 157 pm |
| D. | 181 pm |
| Answer» C. 157 pm | |
| 2. |
If the pressure on a NaCl structure is increased, then its coordination number will |
| A. | Increase |
| B. | Decrease |
| C. | Either (a) or (b) |
| D. | Remain the same |
| Answer» B. Decrease | |
| 3. |
Which among the following will show anisotropy? |
| A. | Glass |
| B. | Plastic |
| C. | Barium chloride |
| D. | Wood |
| Answer» D. Wood | |
| 4. |
Compounds with identical crystal structure and analogous chemical formula are called |
| A. | Isomers |
| B. | Isotones |
| C. | Allotropes |
| D. | Isomorphous |
| Answer» E. | |
| 5. |
For an ionic crystal of the general formula AX and coordination number 6, the value of radius ratio will be |
| A. | In between 0.732 and 0.414 |
| B. | In between 0.414 and 0.225 |
| C. | Less than 0.225 |
| D. | Greater than 0.732 |
| Answer» B. In between 0.414 and 0.225 | |
| 6. |
The edge of unit cell of fcc Xe crystal is 620 pm. The radius of Xe atom is |
| A. | 189.37 pm |
| B. | 209.87 |
| C. | 219.25 pm |
| D. | 235.16 |
| Answer» D. 235.16 | |
| 7. |
The three dimensional graph of lattice points which sets the pattern for the whole lattice is called |
| A. | Space lattice |
| B. | Simple lattice |
| C. | Crystal lattice |
| D. | Unit cell |
| Answer» B. Simple lattice | |
| 8. |
Giant ionic structures is also name given to |
| A. | ionic lattice |
| B. | crystal lattice |
| C. | metallic lattice |
| D. | covalent lattice |
| Answer» B. crystal lattice | |
| 9. |
Metals can be hammered into different shapes and drawn into wires hence they are |
| A. | soft |
| B. | malleable |
| C. | strong |
| D. | weaker |
| Answer» C. strong | |
| 10. |
Diamonds are hard and |
| A. | do not conduct electricity |
| B. | bear high melting point |
| C. | bear high boiling point |
| D. | All of Above |
| Answer» E. | |
| 11. |
Metal which can be melted even by warmth of human palm is |
| A. | gallium |
| B. | indium |
| C. | aluminum |
| D. | tungsten |
| Answer» B. indium | |
| 12. |
Silicon (IV) oxide which is found in mineral quartz is very similar to |
| A. | graphite |
| B. | diamond |
| C. | iron |
| D. | copper |
| Answer» C. iron | |