MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Solid carbon dioxide is an example of _________ |
| A. | metallic crystal |
| B. | covalent crystal |
| C. | ionic crystal |
| D. | molecular crystal |
| Answer» E. | |
| 2. |
Quartz is an example of ___________ |
| A. | molecular solids |
| B. | ionic solids |
| C. | covalent solids |
| D. | metallic solids |
| Answer» D. metallic solids | |
| 3. |
Solids are classified as ___________ |
| A. | crystalline and ionic solids |
| B. | metallic and amorphous solids |
| C. | molecular and covalent solids |
| D. | crystalline and amorphous solids |
| Answer» E. | |
| 4. |
Which of the following is a characteristic of amorphous solid? |
| A. | They are true solids |
| B. | They have sharp melting points |
| C. | They undergo clear cleavage |
| D. | They are isotropic |
| Answer» E. | |
| 5. |
Which is not a characteristic of crystalline solids? |
| A. | They undergo a clean cleavage |
| B. | They are true solids |
| C. | They are isotropic |
| D. | They have sharp melting points |
| Answer» D. They have sharp melting points | |
| 6. |
Which type of solid crystals will conduct heat and electricity? |
| A. | Ionic |
| B. | Covalent |
| C. | Molecular |
| D. | Metallic |
| Answer» E. | |
| 7. |
The unit cell with a≠b≠c and α=γ=90, β≠90 refers to __________crystal system. |
| A. | cubic |
| B. | tetragonal |
| C. | monoclinic |
| D. | triclinic |
| Answer» D. triclinic | |
| 8. |
The points which shows the position of atoms in crystal are called as _________ |
| A. | crystal lattice |
| B. | crystal parameters |
| C. | bravais lattice |
| D. | lattice point |
| Answer» E. | |
| 9. |
In the simple cubic cell, each corner atom is shared by __________ |
| A. | eight unit cells |
| B. | one unit cell |
| C. | two unit cells |
| D. | six unit cells |
| Answer» B. one unit cell | |
| 10. |
Which is the most unsymmetrical crystal system? |
| A. | Triclinic crystal system |
| B. | Cubic crystal system |
| C. | Hexagonal crystal system |
| D. | Trigonal crystal system |
| Answer» B. Cubic crystal system | |
| 11. |
The unit cell with a≠b≠c and α=β=γ=90 refers to __________ crystal system. |
| A. | hexagonal |
| B. | trigonal |
| C. | triclinic |
| D. | orthorhombic |
| Answer» E. | |
| 12. |
In face-centred cubic cell, a unit cell is shared equally by __________ |
| A. | four unit cells |
| B. | two unit cells |
| C. | one unit cell |
| D. | six unit cells |
| Answer» E. | |
| 13. |
Which of the following is not a crystal system? |
| A. | Cubic |
| B. | Trigonal |
| C. | Triclinic |
| D. | Hexaclinic |
| Answer» E. | |
| 14. |
Which one of the following are the dimensions of cubic crystal? |
| A. | a =b ≠ c |
| B. | a = b = c and α = β ≠ γ = 90 |
| C. | a = b = c and α = β = γ = 90 |
| D. | a ≠ b = c and α = β ≠ γ = 90 |
| Answer» D. a ≠ b = c and α = β ≠ γ = 90 | |
| 15. |
Silicon is found in nature in the forms of ________ |
| A. | body-centered cubic structure |
| B. | hexagonal-closed packed structure |
| C. | network solid |
| D. | face-centered cubic structure |
| Answer» D. face-centered cubic structure | |
| 16. |
Diamond is an example of _______ |
| A. | solid with hydrogen bonding |
| B. | electrovalent solid |
| C. | covalent solid |
| D. | glass |
| Answer» D. glass | |
| 17. |
In polar molecular solids, the molecules are held together by ________ |
| A. | dipole-dipole interactions |
| B. | dispersion forces |
| C. | hydrogen bonds |
| D. | covalent bonds |
| Answer» B. dispersion forces | |