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WorksheetsProperties of Crystals
Total questions: 25
Worksheet time: 13mins
Anisotropy is defined as:
Graphite is anisotropic in nature because:
allow passage of current parallel to layers not perpendicular to layers
crystal growth is defined as:
The plane of symmetry of crystal is:
The axis of symmetry of crystal is:
A line that passes through the corners of the crystal.
A physical line that can be seen on the surface of the crystal.
A line that divides the crystal into three equal parts.
The imaginary line that passes through the center of the crystal at which crystal can be ratated at 360o
The center of symmetry of crystal:
Located on the surface of the crystal.
The point within the crystal where the arrangement of atoms or molecules is asymmetrical.
The point within the crystal where the arrangement of atoms or molecules is symmetrical in all directions.
A random point within the crystal.
Crystalline solids have sharp melting point due to:
Allotropy takes place in:
which is not crystalline allotrope of carbon:
charcoal
Transition temperature is defined as:
The Transition temperature of Rhombic & Monoclinic sulphur is:
The crystal structure of diamond is:
The crystal structure of graphite is:
Isomorphism in crystals is defined as:
NaCl & MgO are:
polymorphours
isomorphous
Allotropes
Isotopes
The physical properties of isomorphic compounds are:
polymorphism in crystals is defined as:
Calcite & Argonite are:
polymorphours
isomorphous
Allotropes
Isotopes
Cleavage in crystals is defined as:
The tendency of a crystal to break along specific planes to produce identical small crystals
The temperature at which two allotropic coexist in equilibrium is called:
Graphite conducts electricity in one direction only because it is:
polymorphous
amorphous
symmetrical
Which of the following is NOT a characteristic of crystalline solids:
They are isotropic (have the same properties in all directions).
They have a sharp melting point.
They have a regular arrangement of atoms, ions, or molecules.
They have a definite shape and volume.
Which of the following statements is TRUE about the arrangement of atoms in crystalline solids:
The atoms are arranged in a regular and repeating pattern.
The atoms are arranged in a random and disordered pattern.
The atoms are arranged in a combination of regular and random patterns.
All of these
Which of the following properties of a crystalline solid depends on the direction in which it is measured:
Density
Melting point
Electrical conductivity
Deformity
Which of the following is NOT a true statement about crystalline solids:
They are more common than amorphous solids.
They have a higher melting point than amorphous solids.
They are less brittle than amorphous solids.
They are more ductile than amorphous solids.
