Free Solids MCQs with Answers
357 Solids MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Solids are classified by particle arrangement and bonding into crystalline, ionic and molecular forms. Questions cover crystal lattices, the shapes and properties of ionic crystals, and lattice energy, including how ion charge and ionic size affect the strength of attractions within an ionic solid.
Last updated
Read the Solids notesFree MDCAT chapter notes with key terms357 questions · page 9 of 18
- A. Glass.
- B. Diamond.
- C. Silica.
- D. Carbon.
Explanation: Glass is called a supercooled liquid because the molecules in the material are constantly in a state of flux. Glass is an Amorphous solid.
Correct answer: Glass.- A. Amorphous solids
- B. Crystalline solids
- C. Polymorphic solids
- D. Isomorphic solids
Explanation: An amorphous solid is any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern.
Correct answer: Amorphous solids- A. Cooling
- B. Heating
- C. Impurity
- D. None of these
Explanation: Option C is correct since the presence of impurity due to its different electronic structure produces disturbance in the conduction…
Correct answer: Impurity- A. Solids
- B. Liquids
- C. Gases
- D. All of these
Explanation: Option A is correct since solids are closely packed through strong attractive forces.
Correct answer: Solids- A. Chemical Properties
- B. Lattice Structure
- C. Physical Properties
- D. Density
Explanation: Option C is correct since some crystals show variation in physical properties depending upon their direction of cleavage.
Correct answer: Physical Properties- A. Zn
- B. Cd
- C. Ag
- D. Mn
Explanation: An isomorph is a compound or element that exhibits a similar crystal structure to another compound or element.
Correct answer: Ag- A. Trigonal
- B. Orthorhombic
- C. Rhombohedral
- D. Tetragonal
Explanation: The correct answer is: cubic Above 128°C, potassium nitrate (KNO3) adopts a cubic crystal structure.
Correct answer: Rhombohedral- A. Freezing point
- B. Melting point
- C. Boiling point
- D. None of these options are correct
Explanation: The transition temperature of allotropic forms of an element refers to the temperature at which the element undergoes a transformation…
Correct answer: Melting point- A. Cubic system
- B. Tetragonal system
- C. Triclinic system
- D. Hexagonal system
Explanation: In the tetragonal system, two axes are of equal lengths and the third axe is either shorter or larger than the other two.
Correct answer: Tetragonal system- A. 90 & 45
- B. 90 & 120
- C. 45 & 90
- D. 120 & 180
Explanation: In a rhombohedral or trigonal system, all the three axes are of an equal length like a cubic system but the three angles are not equal and…
Correct answer: 90 & 120- A. 2:2
- B. 1:2
- C. 2:1
- D. 1:4
Explanation: Ratio of silicon to oxygen atoms in silicon dioxide is 1:2 (SiO2).
Correct answer: 1:2- A. Gemstone
- B. Coal tar
- C. Glass
- D. Diamond
Explanation: Each carbon atom is covalently bonded to four other carbon atoms in diamond. A lot of energy is needed to separate the atoms.
Correct answer: Diamond- A. X-rays analysis
- B. Spectroscopic analysis
- C. Spectrometric analysis
- D. Combustlon analysis
Explanation: Crystal structure is explored through the diffraction of waves having a wavelength comparable with the interatomic spacing (10−10 m) in…
Correct answer: X-rays analysis- A. Crystalline solids
- B. Pure solids
- C. True solids
- D. Amorphous solids
Explanation: Crystalline solids have definite heat of fusion, whereas amorphous solids have indefinite heat of fusion.
Correct answer: Amorphous solids- A. Refractive Index
- B. Thermal conductivtiy
- C. Electrical conductivity
- D. Melting points
Explanation: d) Melting Points: Melting point is typically not considered an anisotropic property.
Correct answer: Melting points- A. Are isotopes
- B. Are isomers
- C. Are allotropes
- D. Have the same structure
- E. Are equally hard
Explanation: Diamond and Graphite are allotropes of carbon. The term allotrope refers to one or more physical forms of a chemical element that occurs…
Correct answer: Are allotropes- A. Glass
- B. Table salt
- C. Glue
- D. Rubber
Explanation: Table salt is a crystalline solid. It forms a well-defined crystal lattice structure where sodium (Na+) and chloride (Cl-) ions arrange…
Correct answer: Table salt- A. Refractive index
- B. Coefficient of thermal expansion
- C. Cleavage
- D. Metallic conduction
Explanation: Metallic conduction (Option D) is an example of an isotropic property. Isotropic properties are those that exhibit the same value or…
Correct answer: Metallic conduction- A. Anisotropy
- B. Isomorphism
- C. Allotropy
- D. Polymorphism
- E. C and d
Explanation: Allotropy specifically refers to the existence of an element in two or more different structural forms when they are in the same physical…
Correct answer: C and d- A. Ionic crystal
- B. Molecular crystal
- C. Covalent crystal
- D. Metallic crystal
Explanation: Covalent crystals, due to the strong covalent bonds holding their structures together, typically exhibit the highest melting and boiling…
Correct answer: Covalent crystal