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Chemistry Questions and Answers

General Science
109. Oxidation number of sulphur in sulphuric acid is
 
  • A. two
  • B. four
  • C. six
  • D. eight
 
 
110. Which is the weakest?
 
  • A. covalent bond
  • B. ionic bond
  • C. metallic bond
  • D. hydrogen bond
 
111. Polymer of amino acid is
 
  • A. sugar
  • B. fat
  • C. phenol
  • D. protein
 
112. Plaster of Paris is made from
 
  • A. bauxite
  • B. gypsum
  • C. epsomite
  • D. lime