Carbon and its Compounds Quiz - CBSE Class 10 Science

Free practice quiz: Carbon and its Compounds (CBSE Class 10 Science). 19 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is the valency of carbon?

   1. 1
   2. 2
   3. 3
   4. 4
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   Answer: D. 4

   Carbon has a valency of four because it can form four covalent bonds with other atoms.

2. Which compound has a triple bond?

   1. Methane
   2. Ethylene
   3. Ethyne
   4. Propane
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   Answer: C. Ethyne

   Ethyne, also known as acetylene, has a triple bond between the carbon atoms.

3. Which compound is represented by the structural formula C2H4?

   1. Methane
   2. Ethylene
   3. Acetylene
   4. Propane
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   Answer: B. Ethylene

   C2H4 represents ethylene, an alkene with a double bond between the two carbon atoms.

4. How many structural isomers can butane form?

   1. 1
   2. 2
   3. 3
   4. 4
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   Answer: B. 2

   Butane can form 2 structural isomers: n-butane and isobutane.

5. What is the primary use of phenol in industry?

   1. Antibiotics
   2. Plastics
   3. Perfumes
   4. Fossil fuels
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   Answer: B. Plastics

   Phenol is primarily used in the production of plastics, such as phenolic resins.

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