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Indian Navy INET Carbon and its Compounds — practice questions

Explore 5 free Carbon and its Compounds questions in Indian Navy INET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Carbon and its Compounds questions and exercises with answers

Showing questions 1–5 of 5.

Which of the following pairs are members of the same homologous series?Read the answer and worked solution →The functional group –COOH represents:Read the answer and worked solution →A soap molecule cleans greasy clothes mainly because: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 →Which of these reactions is a substitution reaction?Read the answer and worked solution →

Worked practice questions

Which of the following pairs are members of the same homologous series?

  1. methane and ethane
  2. ethane and ethene
  3. ethanol and ethanoic acid
  4. ethanol and methanal
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Correct answer: A. methane and ethane

Methane and ethane are both alkanes (CₙH₂ₙ₊₂) differing only by CH₂ — by definition same homologous series. The other pairs have different functional groups or bond types.

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The functional group –COOH represents:

  1. ketone group
  2. carboxylic acid
  3. aldehyde group
  4. alcohol group
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Correct answer: B. carboxylic acid

–COOH is the carboxylic-acid group (e.g., CH₃COOH = ethanoic acid / acetic acid).

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A soap molecule cleans greasy clothes mainly because:

  1. bleaches grease using oxygen
  2. dissolves grease completely
  3. kills the grease chemically
  4. tail in grease, head in water
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Correct answer: D. tail in grease, head in water

The hydrophobic tail buries into grease the hydrophilic head pokes into water. The arrangement forms micelles that suspend dirt in water for rinsing.

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More Chemistry topics

JEE Main 2023 MixedAtomic combinationsStructure of AtomAtoms and ElementsChemical EquilibriumClass9 Atom StructureChemistryAlkenes