Name a cyclic unsaturated carbon compound.
Name a cyclic unsaturated carbon compound.
Official answer
Benzene () is a cyclic unsaturated carbon compound.
Marking scheme
- 1.Name of the compound (Benzene) or formula (): 1 Mark
Hint
Think of a six-carbon ring compound with alternating double bonds mentioned in the text.
Quick oral answer
Benzene is a cyclic unsaturated carbon compound with the molecular formula . It consists of six carbon atoms in a ring with alternating single and double bonds.
Common mistakes
- 1.Writing cyclohexane instead of benzene. Cyclohexane () is a saturated cyclic compound, whereas benzene () is unsaturated.
Analysis and explanation
According to the NCERT textbook, carbon atoms can be arranged in the form of a ring. Benzene () is a cyclic hydrocarbon containing six carbon atoms with alternating single and double bonds, which makes it unsaturated. Another example is cyclohexene, but benzene is specifically highlighted in the text (Figure 4.10) as a cyclic unsaturated compound.
Interesting facts
Benzene was discovered by Michael Faraday in 1825. Its ring structure was famously proposed by Friedrich August Kekulé, who claimed to have realized the ring shape after having a day-dream of a snake biting its own tail.
Question details
Q1 of 39 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2020
- Section
- Section A
- Marks
- 1
- Type
- Very Short Answer
- Chapter
- Carbon and its Compounds
- Topic
- Chains, Branches and Rings
- Bloom's level
- Remembering
- Syllabus topic
- Saturated and unsaturated carbon compounds, chains, branches and rings
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2020?
This question carries 1 mark in the CBSE Class 10 Science 2020 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Carbon and its Compounds" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Chains, Branches and Rings" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2020 paper?
This is a Very Short Answer question from Section A in the CBSE Class 10 Science 2020 paper.