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Periodic Table: O Level Chemistry Quizzes Online MCQs PDF Download eBook

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Periodic Table: O Level Chemistry Questions and Answers PDF Download eBook

Periodic Table: O Level Chemistry Quiz

MCQ: First element in periodic table to have 8 valence electrons is

  1. nitrogen
  2. oxygen
  3. fluorine
  4. neon

D

pH Scale: Acid and Alkali Quiz

MCQ: Soda water (H2CO3(aq)) has a pH of

  1. 1
  2. 2
  3. 3
  4. 4

D

Strong and Weak Acids Quiz

MCQ: Consider the equation Al2O3 + NaOH + H2O →NaAl(OH)4. Balancing of the equation requires how many moles of NaOH?

  1. 1
  2. 2
  3. 3
  4. 4

B

Paper Chromatography Quiz

MCQ: Chromatography is especially useful for

  1. foods only
  2. drugs only
  3. salt solutions
  4. food and drugs

D

Measuring Speed of Reaction Quiz

MCQ: While plotting decrease in mass against time, a flat curve shows

  1. fastest reaction
  2. reaction is slower
  3. that the reaction is over
  4. that the reaction is endless

C