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Maharashtra SSC (Class 10) Unit 4C1: Hydrocarbons and Carbon Compounds — practice questions

Explore 23 free Unit 4C1: Hydrocarbons and Carbon Compounds questions in Maharashtra SSC (Class 10) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 4C1: Hydrocarbons and Carbon Compounds questions and exercises with answers

Showing questions 1–23 of 23.

An atom of an element that substitutes for a hydrogen atom in a hydrocarbon chain, such as a halogen or oxygen, is called a:Read the answer and worked solution →Which functional group is represented by the condensed formula -COOH?Read the answer and worked solution →A series of compounds with the same functional group and chains of sequentially increasing length is called a:Read the answer and worked solution →By what mass do successive members of a homologous series differ as one -CH2- unit is added?Read the answer and worked solution →What is the general molecular formula for the homologous series of alkanes?Read the answer and worked solution →Using the alkyne general formula CnH2n-2, what is the molecular formula of the third member (n = 4)?Read the answer and worked solution →In an IUPAC name, the three units are arranged in which order?Read the answer and worked solution →What is the IUPAC name of the compound CH3-CH2-OH?Read the answer and worked solution →When naming a chain bearing -CHO or -COOH, which carbon is assigned the number 1?Read the answer and worked solution →Hydrocarbons and most carbon compounds burn in oxygen to mainly form which two products?Read the answer and worked solution →When ethanol is warmed with alkaline potassium permanganate, it is oxidised to:Read the answer and worked solution →The colour of bromine water disappearing when added to a carbon compound is a test for the presence of a:Read the answer and worked solution →Which catalyst is used in the hydrogenation of vegetable oils to make Vanaspati ghee?Read the answer and worked solution →Chlorination of methane in sunlight, where chlorine atoms replace hydrogen atoms one by one, is an example of which reaction?Read the answer and worked solution →Which gas is liberated when ethanol reacts with sodium metal?Read the answer and worked solution →When ethanol is heated at 170 degrees C with excess concentrated sulphuric acid, the product is:Read the answer and worked solution →Glacial acetic acid gets its name because pure ethanoic acid does what at around 17 degrees C?Read the answer and worked solution →When ethanoic acid reacts with sodium carbonate, which gas is produced as effervescence?Read the answer and worked solution →The reaction between a carboxylic acid and an alcohol that produces an ester is called:Read the answer and worked solution →The reaction of an ester with sodium hydroxide, used to prepare soap from fats, is called:Read the answer and worked solution →A macromolecule formed by the regular repetition of a small unit is called a:Read the answer and worked solution →Which monomer is repeatedly joined to form the polymer polyethylene?Read the answer and worked solution →Which of the following natural polymers has glucose as its monomer?Read the answer and worked solution →

Worked practice questions

An atom of an element that substitutes for a hydrogen atom in a hydrocarbon chain, such as a halogen or oxygen, is called a:

  1. Bridging atom
  2. Central atom
  3. Carbon atom
  4. Hetero atom
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Correct answer: D. Hetero atom

1. Elements like halogens, oxygen, nitrogen and sulphur can replace hydrogen in a chain. 2. The atom that substitutes for hydrogen is referred to as a hetero atom. 3. These hetero atoms or groups containing them are called functional groups. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 9 "Carbon Compounds", p.126_

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Which functional group is represented by the condensed formula -COOH?

  1. Carboxylic acid
  2. Aldehyde group
  3. Alcohol group
  4. Ketone group
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Correct answer: A. Carboxylic acid

1. In -COOH a carbon is double-bonded to one oxygen and single-bonded to an -OH. 2. This C(=O)-OH combination is the carboxylic acid functional group. 3. Rule out B: an aldehyde is -CHO, where the carbonyl carbon holds a hydrogen, not -OH. 4. Rule out C: an alcohol is just -OH, with no C=O present. 5. Rule out D: a ketone is -CO- flanked by two carbons, with no -OH. 6. Only carboxylic acid has both the C=O and the -OH on the same carbon. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 9 "Carbon Compounds", p.127_

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A series of compounds with the same functional group and chains of sequentially increasing length is called a:

  1. Homologous series
  2. Isomeric series
  3. Polymer chain
  4. Aromatic series
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Correct answer: A. Homologous series

1. Compounds like CH3OH, CH3CH2OH and CH3CH2CH2OH share the -OH group but have different chain lengths. 2. Their chemical properties are similar because the functional group is the same. 3. Such a series with increasing chain length is called a homologous series. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 9 "Carbon Compounds", p.127_

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