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EVALUATION

True-False Question

Answer all the questions by either ticking "True" or "False"

Question 1

1. Water can be used as a moving solvent in paper chromatography.

Question 2

2. Other than chromatography, there are other methods that can be used to separate coloured substances.

Multi-choice

Question

1. Which one of the following is true about chromatography?

Answers

a) It is a method of separating solid-solid mixtures

b) It is a method of separating coloured substances

c) Is the study of colours

d) Can be used to extract oil from nuts and seeds

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Question

2. Which of the following apparatus does not find any use in paper chromatography?

Answers

a) Filter paper

b) Beaker

c) Deflagrating spoon

d) Dropper

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Cloze Activity

Read the paragraph below and fill in the missing words.

  • is a method of separating a mixture by passing it in solution through a medium in which the components move at different .
  • In this method, the pigments are separated by their different rates of over a porous/adsorbent material caused by a moving .
  • In paper chromatography, paper is used as the porous material while water, propanone, ethanol, etc are used as a   solvent.

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Scrambled List

Order the following words to come up with the definition of chromatography

  • Chromatography
  • is
  • a
  • method
  • of
  • separating
  • coloured
  • substances

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Right!

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