Chapter 1 - Fundamental of Chemistry Online Test

Fundamental of Chemistry

Quiz

 

1. Which of the following is NOT a chemical change?
   1.   Rusting of iron
   2.   Melting of ice
   3.   Burning of wood
   4.   Digestion of food
2. The smallest particle of an element which can take part in a chemical reaction is called:
   
   1.   Atom
   2.   Molecule
   3.   Compound
   4.   Ion
3. Which of the following statements about elements is true?
   1.   Elements can be broken down into simpler substances by chemical means.
   2.   Elements combine in fixed ratios to form compounds.
   3.   Elements are pure substances that cannot be broken down further by ordinary chemical means.
   4.   Elements are always found in liquid state at room temperature
4. The number of protons in the nucleus of an atom is called its:
   1.   Atomic mass
   2.   Atomic number
   3.   Mass number
   4.   Isotopic number
5. Which of the following is a physical change?
   1.   Burning of paper
   2.   Boiling of water
   3.   Digestion of food
   4.   Rusting of iron
6. An atom that gains or loses electrons becomes a:
   1.   Molecule
   2.   Compound
   3.   Ion
   4.   Isotope
7. The chemical symbol of Sodium is:
   
   1.   S
   2.   So
   3.   Na
   4.   N
8. Water is a:
   1.   Compound
   2.   Element
   3.   Mixture
   4.   Atom
9. Which of the following is a compound?
   1.   Hydrogen gas
   2.   Carbon dioxide
   3.   Oxygen gas
   4.   Helium
10. Which of the following is an example of a homogeneous mixture?
    
    1.   Air
    2.   Sand in water
    3.   Granite
    4.   Oil and water