Dyes and Pigments Reading Answers

Justin

4 min read

Updated On Jan 03, 2024

Dyes and Pigments
Answers

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Dyes and Pigments

You should spend about 20 minutes on Questions 14-26, which are based on the Reading Passage below.

Find the practice test with the Dyes and Pigments PDF here.

Answers

Question number	Answer	Explanation
14	vii	In Paragraph B, the line “dyestuffs came from a variety of natural sources” states that this paragraph talks about the types of sources used to make dye in the past. Hence, the appropriate heading for this answer is “vii.”
15	viii	The first line of paragraph C, “the value of a dye is not just its availability, but also its fastness or durability against daily use”, confirms that this paragraph discusses the availability and durability of dye. Hence, the appropriate heading for this answer is “viii.”
16	v	The initial line, “two classification of dyeing, the home craft and the trade, or industrial, dyeing”, from paragraph D confirms that this paragraph discusses dyes originating from family to industry. Hence, the appropriate heading for this answer is “v.”

17	i	As per the second line of paragraph E, “dyed clothing was very early a part of this status proclamation. Still, today, the important and the wealthy prefer to wear items not available to all.” Since the wealthy preferred wearing clothing that was not available to general people, it implies that this passage discusses clothing symbolising status. Hence, the appropriate heading for this answer is “i.”
18	vi	In paragraph F the second line states that “the dye was extremely expensive, therefore, available to only a few.” Through this line, we can deduce that this passage talks about the value of colours. Hence, the appropriate heading for this answer is “vi.”
19	C	The last line of paragraph C conveys that “the colour, and its brightness, also helped determine the dye’s value. Premium colours were purple, blue, and bright shades of red.” Through this information, we can deduce that the colours which had superior value in the past were purple, blue, and shades of red. Here, the author is referring to shades of red which means it can have any shade of red but not exactly red. So, here the one superior colour is blue. Hence, the correct answer is “C.”
20	A	Paragraph E states that “in Egypt, the pharaohs wore specially made clothing, dyed with colours difficult to obtain.” From this line we can deduce that the correct answer is “A.”
21	A	Paragraph F mentions that “only rulers, or emperors, were allowed to wear purple.” Therefore, “this is where the phrase ‘born to the purple’ came from.” Since only emperors and kings were allowed to wear purple at first, persons born into royal families were referred to as being “born to the purple” or having a royal birth. As a result, the correct answer is “A.”
22	insoluble	Paragraph G discusses the dyes and the pigments in detail where it states that “pigments are generally distinguished from dyes as colouring materials on the basis of their soluble ability.” Also, “in contrast to dyes, pigments are highly insoluble colouring materials.” The term ‘pigments are highly insoluble’ infers that pigments are more insoluble than dyes. Hence, the correct answer is “insoluble.”
23	absorbed	According to Paragraph A, “true dyeing is a permanent colour change, and the dye is absorbed by, or chemically combined with, the fibre.” Through this information, we can determine that in the process of colouring, dyes are absorbed. Hence, the correct answer is “absorbed.”
24	dispersion	Paragraph G provides the information that “pigments are highly insoluble colouring materials, which are dyed, pigments are highly insoluble colouring materials, which are incorporated into an application medium by dispersion.” Since pigments are insoluble colouring material, it infers that to make pigments work, it is included into another medium by dispersion. Hence, the correct answer is “dispersion.”
25	intensity	In paragraph I, there’s a line that states that “organic pigments generally provide higher intensity and brightness of colour than inorganic pigments.” The words ‘organic pigments generally provide higher intensity.’ provide the information that pigments generally provide or work on high intensity. Hence, the correct answer is “intensity.”
26	opacity	Paragraph I also mentions that “organic pigments are unable to provide the degree of opacity offered by most inorganic pigments which have the lower reflectance.” Therefore, the organic pigments are unable to provide the degree of opacity. It means that it has a lower degree of opacity. Hence, the correct answer is “opacity.”

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