MCQs 2 on CHAPTER 1 => Solid State

This are MCQs 2 on CHAPTER 1 => Solid State. Practice MCQs to check your knowledge for Entrance examination like CBSE Board etc

1. Which of the elements in its crystalline form will have the lowest enthalpy change of vaporizations.

• chlorine
• argon
• phosphorous
• silicon

2. Crystals show variation in physical properties depending upon the direction. The property is called

• isomorphism
• polymorphism
• anisotropy
• isotropy

3. Certain melt to a turbid liquid phase with properties of liquids as well as some degree of order like solid. Such turbid liquids are called

• anorphous solid
• vitreous solid
• crystalline solid
• liquid crystal

4. Isomorphous crystals show

• same chemical properties
• same physical properties
• same crystalline form
• same melting point

5. Existence of an element in more than form is known as

• allotropy
• isomorphism
• isotropy
• none of these

6. Crystalline forms of the same, substance can coexist in equilibrium with each other at its

• melting point
• transition temperature
• boiling point
• none of these

7. Crystal lattice of substance can be catagorised into

• five types
• seven types
• six types
• none of these

8. Covalent solids are composed of

• ions
• different molecules
• neutral atoms
• any of the above

9. Carbon atoms of diamond are

• sp hybridized
• sp2 hybridized
• sp3 hybridized
• unhybridized

10.Molecular crystals are generally

• hard
• soft
• unstable
• stable