Chemistry Chapter 5 Entry Test MCQs
Topic 5
Solid Properties
1. The pseudo solid is
a. Aluminium nitride
b. Rock salt
c. Silica
d. Wood
2. Which of the followings is not a property of crystalline solids?
a. High density
b. Definite shape
c. Low compressibility
d. Isotropy
3. Butter melts over a wide range of temperature. On this basis, it is classified as
a. Amorphous solid
b. Molecular solid
c. Covalent solid
d. Crystalline solid
4. Amorphous substances show
a. Long range order
b. Short range order
c. Have no sharp M.P.
d. B and C both
5. The characteristic features of solids are
a. Definite shape and size
b. Definite shape
c. Definite shape, size and rigidity
d. Definite size
6. Among the following which is not crystalline
a. Glass
b. NaCl
c. Ice
d. Sucrose
7. Which of the following is not a feature of solids:
a. Rigidity
b. Definite mass and volume
c. Definite shape
d. Frequent fluidity
8. Glass is called super cooled liquid. The reason is that glass has
a. Crystalline structure
b. Definite volume
c. No crystalline structure
d. Definite shape
9. Which property is incorrect about silica?
a. Very low thermal expansion
b. High transparency to light
c. Soluble in water
d. Excellent insulator
Crystalline Solid Properties + Types
10. Which is true for graphite
a. sp2 hybridized, hexagonal, lead pencil
b. sp3 hybridized, good conductor, lubricant
c. sp3 hybridized, bond angle in 120o
d. sp2 hybridized, hard, ornament
11. Unit cell is the smallest part and represented all features of the entire _
a. Atom
b. Molecule
c. Crystal
d. Compound
12. Unit cells of all crystal system vary from each other by
a. Sides or angles
b. Sides (a,b,c) only
c. Can’t predicted
d. Angles (α, β,γ) only
13. Which of the following is wrong?
a. Graphite is a good conductor of electricity
b. Water has maximum density at 4oC
c. Molecular solids are relatively soft and volatile
d. In graphite carbon atom has tetrahedral geometry
14. K2SO4 and K2CrO4 are isomorphic substances they have similar properties except one
a. Chemical properties
b. Atomic ratio
c. Geometry of anion
d. Crystalline shape
15. Which of the following is an example of molecular solid?
a. Sodium sulphate
b. Aluminium nitride
c. Graphite
d. Glucose
16. Ionic solids are characterized by which one of the following properties
a. High vapour pressure
b. Moderate vapour pressure
c. Solubility in polar solvents
d. Good conductivity in solid state
17. Diamond and graphite are
a. Isomorphous
b. Polymorphous
c. Allotropes
d. Both “B” and “C”
18. Which one is not the anisotropic behaviour
a. Co-efficient of thermal expansion
b. Cleavage of crystal
c. Melting point and boiling point
d. Electrical conductivity
19. An example of three dimensional giant structure is
a. Sodium chloride
b. Ice
c. Iodine
d. Diamond
20. The solid NaCl is a bad conductor of electricity since
a. Solid NaCl is covalent
b. In solid NaCl there are no ions
c. In solid NaCl there are no electrons
d. In solid NaCl there is no velocity of ions
21. The existence of a substance in more than one solid modifications is known as or Any compound having more than two crystal structures is called
a. Allotropy
b. Polymorphism
c. Enantiomorphism
d. Isomorphism
22. Which of the following is not correct for ionic crystals?
a. They possess high melting point and boiling point
b. All are electrolyte
c. Exhibit directional properties of the bond
d. Exhibit the property of isomorphism
23. Electron gas theory was proposed to explain the bonding in solids
a. Ionic
b. Molecular
c. Metallic
d. Covalent
24. Copper has metallic bond in it. From this information alone, it may be deduced that copper is
a. Less dense than water
b. Soft
c. Very reactive
d. Good conductor of electricity
25. Which has strongest bonding in the solid state?
a. Xenon(Xe)
b. Hydrogen Chloride (HCI)
c. Sodium Chloride (NaCI)
d. Chlorine (Cl2)