chemistry 100-- Exam 2

Results (11-5-01)

Overall Average: 53 (out of 100)

• Part I (short answers): 25 (out of 40)
• Part II (multiple choice): 14 (out of 30 questions)
• score is part I + two times part II

Distribution of Scores

• 90'1 (1)
• 80's (7)... that is, seven papers had scores of 80-89
• 70's (17)
• 60's (39)
• 50's (42)
• 40's (37)
• 30's (24)
• 20' (12)

Questions with class scores <50%

• (the numbering refers to form A, the version posted on the Web site)
• question number, correct %, (most common incorrect response)
  • 1 (33%)
  • 2 (38%)
  • 4 (20%)
  • 5 (25%)
  • 8 (35%)
  • 14 (48%)
  • 17 (37%)
  • 18 45%
  • 19 45%
  • 21 33% more b (incorrect) than e
  • 22 20% more b (incorrect) than c
  • 23 23% more c (incorrect) than b
  • 24 13% more a (incorrect) than b
  • 26 32%
  • 27 40%
  • 28 30%
  • 29 23% more d (incorrect ) than c