The colour of raisins as used in the experiment, 'to determine the percentage of water absorbed by raisins' was
The colour of raisins as used in the experiment, 'to determine the percentage of water absorbed by raisins' was
Options
Official answer
The correct option is C. The raisins commonly used in this laboratory experiment are dark brown in colour.
Marking scheme
- 1.1 Mark for selecting the correct option C.
Hint
Think of the common dried grapes (Kishmish) available in the market and used in biology labs.
Quick oral answer
The raisins used in the laboratory are typically dark brown in colour.
Common mistakes
- 1.Students might confuse raisins with fresh grapes or other dried fruits and choose yellow or white.
Analysis and explanation
Commonly available raisins (dried grapes) used in school laboratories for performing the water absorption experiment are dark brown or brownish-black.
- Option A (white), Option B (yellow), and Option D (pink) are incorrect because standard raisins used in these experiments are dried dark grapes which have a characteristic dark brown colour due to the concentration of sugars and pigments during the drying process.
Interesting facts
The dark brown colour of raisins is due to the enzymatic browning that occurs during the sun-drying or dehydration process of grapes.
Question details
Q40 of 41 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2011
- Section
- Section B
- Marks
- 1
- Type
- MCQ
- Chapter
- Life Processes
- Topic
- Osmosis and Water Absorption in Raisins
- Bloom's level
- Remembering
- Syllabus topic
- Practical: To determine the percentage of water absorbed by raisins
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2011?
This question carries 1 mark in the CBSE Class 10 Science 2011 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Life Processes" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Osmosis and Water Absorption in Raisins" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2011 paper?
This is a MCQ question from Section B in the CBSE Class 10 Science 2011 paper.