Acid Strength and Types Quiz
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Questions and Answers

What characterizes a strong acid?

  • Is always an organic acid
  • Dissociates completely in water (correct)
  • Is used as a food supplement
  • Produces less hydrogen ions

Which of the following is classified as a weak acid?

  • Hydrochloric acid
  • Nitric acid (correct)
  • Sulphuric acid
  • Acetic acid (correct)

What distinguishes organic acids from inorganic acids?

  • Organic acids contain carbon (correct)
  • Organic acids are stronger than inorganic acids
  • Inorganic acids are naturally occurring
  • They both dissociate completely in water

What is a property of inorganic acids?

<p>They are prepared from minerals in the earth's crust (A)</p> Signup and view all the answers

Which of the following acids should be handled with care due to their strong corrosive properties?

<p>Sulphuric acid (A)</p> Signup and view all the answers

Which acid is produced when carbon dioxide dissolves in water?

<p>Carbonic acid (D)</p> Signup and view all the answers

What do all acids produce when dissolved in water?

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

Which acid is an example of an organic acid found in plants?

<p>Lactic acid (B)</p> Signup and view all the answers

Flashcards

What characterizes a strong acid?

A strong acid dissociates completely into ions when dissolved in water, meaning all of its molecules break apart to form hydrogen ions (H+) and anions.

What is a weak acid?

Weak acids only partially dissociate in water, meaning some of their molecules remain intact, while others release hydrogen ions (H+) and anions.

What is the key difference between organic and inorganic acids?

Organic acids contain carbon within their molecular structure, while inorganic acids do not.

What are the origins of Inorganic acids?

Inorganic acids are typically derived from minerals found in the Earth's crust. They are often used in industrial processes and various applications.

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Which acid is highly corrosive?

Sulphuric acid is known for its strong corrosive properties, meaning it can cause damage to materials and skin. It is essential to handle it with caution and appropriate protective measures.

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What is formed when carbon dioxide dissolves in water?

When carbon dioxide dissolves in water, it forms carbonic acid. This acid is found in carbonated beverages and contributes to the acidity of rain.

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What do all acids produce in water?

All acids produce hydrogen ions (H+) when dissolved in water. These ions create a conductive solution, allowing electricity to flow through it.

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What is an example of an organic acid found in plants?

Lactic acid is an organic acid naturally present in plants. It is also produced by muscle cells during physical activity, contributing to muscle fatigue.

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Study Notes

Acid Strength

  • Strong acids dissociate completely in water, producing a high concentration of hydrogen ions (H+).
  • Examples of strong acids include sulfuric acid (H2SO4) and hydrochloric acid (HCl).
  • Weak acids do not dissociate completely in water, resulting in a lower concentration of hydrogen ions.
  • Examples of weak acids include acetic acid (CH3COOH) and lactic acid (CH3CH(OH)COOH).

Organic Acids

  • Organic acids contain carbon and are found in living organisms.
  • Examples include citric acid (found in citrus fruits), formic acid (found in ant stings), and acetic acid (found in vinegar).
  • Organic acids are naturally occurring and are often used as food supplements.

Inorganic Acids

  • Inorganic acids are also known as mineral acids.
  • They are derived from minerals found in the Earth's crust.
  • Inorganic acids are produced artificially in industries.
  • Examples include sulfuric acid (H2SO4) and nitric acid (HNO3).
  • Inorganic acids are generally strong acids and should be handled with caution due to their corrosive nature.

Acid Properties

  • Acids dissociate in water to form cations and anions, making their solutions conductive.
  • This behavior classifies them as electrolytes.
  • Carbonic acid (H2CO3) is formed by the reaction of carbon dioxide (CO2) with water (H2O) and has a tangy taste.

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Description

Test your knowledge on the strength and classification of acids. This quiz covers strong, weak, organic, and inorganic acids along with their examples. Understand how these acids behave in water and their real-world applications.

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