Organic Chemistry Class 11 Basics Quiz
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Questions and Answers

What makes a molecule organic?

  • Contain carbon (correct)
  • Decompose easily
  • Contain hydrogen
  • Obtained from plants and animals

Why were organic compounds more difficult to work within the laboratory in the late eighteenth century?

  • They were difficult to synthesize
  • They decompose easily (correct)
  • They contain complex structures
  • They were highly reactive

What were substances divided into by the late eighteenth century?

  • Complex and simple compounds
  • Acidic and basic compounds
  • Metallic and non-metallic compounds
  • Organic and inorganic compounds (correct)

What is the branch of chemistry that deals with the study of carbon compounds?

<p>Organic chemistry (D)</p> Signup and view all the answers

What do all organic molecules contain?

<p>Carbon (C)</p> Signup and view all the answers

What were organic compounds obtained from in the late eighteenth century?

<p>Plants and animals (A)</p> Signup and view all the answers

Why were organic compounds more difficult to work with in the laboratory in the late eighteenth century?

<p>They decomposed easily (A)</p> Signup and view all the answers

What makes a molecule organic?

<p>It contains carbon (A)</p> Signup and view all the answers

What is the branch of chemistry that deals with the study of carbon compounds?

<p>Organic chemistry (D)</p> Signup and view all the answers

Which class of compounds were more difficult to work with in the laboratory by the late eighteenth century?

<p>Organic compounds (D)</p> Signup and view all the answers

Flashcards

Organic chemistry

The branch of chemistry that studies compounds containing carbon.

Organic compounds

Compounds that contain carbon.

Inorganic compounds

Compounds that don't contain carbon.

Classification of substances in the eighteenth century

Substances were divided into two main classes: organic and inorganic compounds.

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Challenges of working with organic compounds in the late eighteenth century

Organic compounds were more difficult to work with in the laboratory because they decomposed easily.

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Sources of organic compounds in the late eighteenth century

Organic compounds were obtained from living organisms like plants and animals.

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Key element in organic molecules

Carbon is the defining element that makes a molecule organic.

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What makes a molecule organic?

The presence of carbon distinguishes organic molecules from inorganic molecules.

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Difficulty in synthesizing organic compounds in the past

Organic compounds were difficult to synthesize in the laboratory in the late eighteenth century because they decompose easily.

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Challenges in studying organic compounds in the past

Organic compounds were more challenging to study in the laboratory due to their tendency to decompose easily.

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Study Notes

Organic Compounds

  • A molecule is considered organic if it contains carbon and hydrogen atoms, and sometimes other elements like oxygen, nitrogen, and sulfur.
  • In the late 18th century, organic compounds were more difficult to work with in the laboratory because they were derived from living organisms, making them complex and harder to isolate, purify, and analyze.
  • Substances were divided into two categories by the late 18th century: organic and inorganic compounds.
  • Organic chemistry is the branch of chemistry that deals with the study of carbon compounds.
  • All organic molecules contain carbon and hydrogen atoms.
  • In the late 18th century, organic compounds were obtained from living organisms, such as plants and animals.
  • The complexity of organic compounds, derived from living organisms, made them more difficult to work with in the laboratory during the late 18th century.

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Description

Test your knowledge of basic principles and techniques in organic chemistry with this quiz. Topics include tetravalence of carbon, structural representations, nomenclature, isomerism, fundamental concepts in organic reaction mechanism, and methods of purification of organic compounds.

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