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CBSE Class 10 Carbon Compounds — practice questions

Explore 50 free Carbon Compounds questions in CBSE Class 10 Science. Open each question or exercise to read its content, reference answers and available explanation.

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Carbon Compounds questions and exercises with answers

Showing questions 1–30 of 50.

Carbon achieves a stable configuration by:Read the answer and worked solution →The valency of carbon is:Read the answer and worked solution →The ability of carbon to form long chains and rings by bonding with other carbon atoms is called:Read the answer and worked solution →Soaps are the sodium or potassium salts of:Read the answer and worked solution →The cleansing action of soap is due to the formation of spherical aggregates called:Read the answer and worked solution →In a covalent double bond, the number of electron pairs shared is:Read the answer and worked solution →Why do most covalent compounds have low melting points?Read the answer and worked solution →A compound with only single bonds between carbon atoms is called:Read the answer and worked solution →The IUPAC name of CH₃CH₂OH is:Read the answer and worked solution →The functional group –COOH represents:Read the answer and worked solution →Combustion of a hydrocarbon in plenty of oxygen produces:Read the answer and worked solution →Hydrogenation of vegetable oil in the presence of nickel catalyst converts it to:Read the answer and worked solution →Detergents work better than soaps in hard water because:Read the answer and worked solution →What is the IUPAC name of CH3CH2OH?Read the answer and worked solution →Which is the simplest aldehyde?Read the answer and worked solution →Which catalyst is used to add hydrogen across the double bond of an alkene?Read the answer and worked solution →Why are the chemical properties of all members of a homologous series similar?Read the answer and worked solution →Which of these reactions is a substitution reaction?Read the answer and worked solution →Identify the product of the reaction: 2C2H5OH + 2Na ->Read the answer and worked solution →Which is NOT an allotrope of carbon?Read the answer and worked solution →Esterification reaction is usually carried out in the presence of:Read the answer and worked solution →On reacting 50 mL ethanol with excess conc. H2SO4 at 443 K, the main product is:Read the answer and worked solution →Why does graphite act as a lubricant?Read the answer and worked solution →Identify the product of the reaction of ethanoic acid with sodium hydroxide:Read the answer and worked solution →Why does ethanoic acid freeze in winter (called glacial acetic acid)?Read the answer and worked solution →Which contains both saturated and unsaturated bonds?Read the answer and worked solution →A molecule of ammonia (NH₃) hasRead the answer and worked solution →In which of the following compounds, — OH is the functional group?Read the answer and worked solution →The soap molecule has aRead the answer and worked solution →Which of the following is the correct representation of electron dot structure of nitrogen?Read the answer and worked solution →

Worked practice questions

Carbon achieves a stable configuration by:

  1. transferring electrons to hydrogen
  2. gaining 4 electrons
  3. losing 4 electrons
  4. sharing its valence electrons (covalent bonding)
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Correct answer: D. sharing its valence electrons (covalent bonding)

Carbon (4 valence electrons) shares electrons to complete its octet, forming covalent bonds.

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The valency of carbon is:

  1. 3
  2. 2
  3. 1
  4. 4
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Correct answer: D. 4

Carbon is tetravalent — valency 4.

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The ability of carbon to form long chains and rings by bonding with other carbon atoms is called:

  1. polymerisation
  2. catenation
  3. isomerism
  4. ionisation
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Correct answer: B. catenation

Catenation is carbon's ability to bond with itself forming chains and rings.

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