Chemistry Lab Quiz

1.   The enzyme lactase breaks the disaccharide lactose into monosaccharides. Which of the following is not a monosaccharide?

  glucose 
  galactose 
  starch 
  fructose 
  All of the above are monosaccharides. 
 

2. The Cl- ion has a single negative charge and the atomic number of 17. How many electrons are on its innermost shell?

  18 
  17 
  9 
  8 
  2 
 

3. When electrons are shared equally between two atoms you have formed what type of bond?

  covalent bond 
  polar covalent bond 
  ionic bond 
  hydrogen bond 
  metallic bond 
 

4. Neutrons carry a positive charge that is why the core of an atom is positively charged.

  True 
  False 
 

5 Acids are found on the pH scale above the number 7.

  True 
  False 

Chemistry Lab Quiz Answers

1.   The enzyme lactase breaks the disaccharide lactose into monosaccharides. Which of the following is not a monosaccharide?

  glucose 
  galactose 
  starch 
  fructose 
  All of the above are monosaccharides. 
 

Answer:    starch