Chemical Hazard Symbols Quiz
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Questions and Answers

What is the primary purpose of hazard symbols?

  • To confuse users of chemicals
  • To ensure higher sales of chemicals
  • To decorate laboratory equipment
  • To standardize communication about chemical hazards (correct)

    • All hazardous substances are safe to handle as long as proper precautions are taken.

    False (B)

    What should be done with gas under pressure to ensure safety?

    Cylinders should be stored in cool areas and kept upright.

    A substance that is __________ can explode due to fire, heat, shock, and friction.

    <p>explosive</p> Signup and view all the answers

    Which of the following is a correct handling procedure for corrosive substances?

    <p>Pour acid into water (A)</p> Signup and view all the answers

    Match the hazard type with its description:

    <p>Acutely Toxic = Life-threatening effects with limited exposure Corrosive = Can burn skin and damage eyes Gas Under Pressure = Pressurized gas that may explode when heated Flammable = Substances that can easily catch fire</p> Signup and view all the answers

    What is an appropriate way to dispose of hazardous substances?

    <p>Dispose of them responsibly.</p> Signup and view all the answers

    Knowledge of hazardous symbols is only necessary for those working directly with chemicals.

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

    What is the primary risk associated with flammable liquids?

    <p>They catch fire easily when exposed to sparks or fire. (C)</p> Signup and view all the answers

    Oxidizing substances can burn in the absence of air.

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

    What should be avoided when handling irritant substances?

    <p>Contact with skin and eyes</p> Signup and view all the answers

    Carcinogenic substances can cause __________ health damage.

    <p>long-term</p> Signup and view all the answers

    Match the hazardous symbols with their corresponding descriptions:

    <p>Explosive = May explode due to fire, heat, shock or friction. Flammable = Catches fire easily when exposed to heat or sparks. Irritant = May irritate the skin, or exhibit minor toxicity. Oxidising = Burns even in the absence of air.</p> Signup and view all the answers

    Which of the following is a proper handling method for oxidizing substances?

    <p>Keep them away from ignition sources. (A)</p> Signup and view all the answers

    Only explosive substances are a concern when it comes to shock and friction.

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

    Harmful substances should be kept away from __________ to prevent skin irritation.

    <p>skin and eyes</p> Signup and view all the answers

    Flashcards

    Flammable Liquid

    A substance that catches fire easily when exposed to sparks or fire.

    Handling Flammable Liquids

    Keep them away from ignition sources and heat.

    Irritant

    Substances that can cause irritation to skin and eyes.

    Handling Irritants

    Avoid contact with skin and eyes.

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    Oxidizing Agents

    Substances that can burn in the absence of air.

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    Handling Oxidizing Agents

    Keep away from ignition sources.

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    Carcinogenicity

    Substances that can cause cancer or long-term health damage.

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    Handling Carcinogens

    Avoid contact with skin and ingestion.

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    Hazard Symbols

    Standardized symbols that communicate chemical hazards.

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    Environmental Toxicity

    Chemicals harmful to organisms and the environment.

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    Acutely Toxic

    Substances that are life-threatening with limited exposure.

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    Gas Under Pressure

    Pressurized gases that can be cold or explosive.

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    Corrosive

    Substances that can burn skin, damage eyes, and corrode metals.

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    Explosive

    Substances that can explode due to fire, heat, shock, or friction.

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    Flammable

    Substances that can easily catch fire.

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    Safe Handling Practices

    Guidelines to manage hazardous substances safely.

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    Study Notes

    Hazardous Symbols

    • Hazard symbols are created by the UN for standardized communication about chemical hazards.
    • Knowing these symbols helps protect people and the environment from hazardous chemicals.
    • They also help with international trading of chemicals.
    • Most lab equipment and chemicals are marked with these symbols.
    • These symbols should be considered during investigations.
    • They highlight potential health & safety hazards of chemicals and equipment.

    Environmental Toxicity

    • Symbol: Image of a tree with a slash through it.
    • Description: Toxic to the environment, specifically organisms.
    • Handling: Dispose of responsibly.

    Acutely Toxic

    • Symbol: Image of a skull and crossbones.
    • Description: Life-threatening with limited exposure.
    • Handling: Avoid skin contact.

    Gas Under Pressure

    • Symbol: Image of a cylinder.
    • Description: Pressurized gas; may be cold or explosive when heated.
    • Handling: Store cylinders upright in cool areas.

    Corrosive

    • Symbol: Image of a beaker with acid in it.
    • Description: Burns skin, damages eyes, and corrodes metal.
    • Handling: Avoid skin contact and pour acid into water, not vice-versa. Wash off with water.

    Explosive

    • Symbol: Image of an explosion.
    • Description: Explodes due to fire, heat, shock, and friction (lots of chemical energy).
    • Handling: Keep away from ignition sources.

    Flammable

    • Symbol: Image of a burning flame.
    • Description: Catches fire easily when exposed to sparks or fire, flammable liquid examples include petrol and kerosene.
    • Handling: Keep away from ignition sources.

    Harmful/Irritant

    • Symbol: Image of an exclamation point.
    • Description: Irritates skin.
    • Handling: Keep away from skin and eyes.

    Oxidising

    • Symbol: Image of a burning flame with an open top.
    • Description: Burns in the absence of air.
    • Handling: Keep away from ignition sources.

    Carcinogenicity/Aspiration Hazard

    • Symbol: Image of a person with a cough.
    • Description: Long-term health damage such as cancer, breathing difficulties.
    • Handling: Avoid contact with skin and ingestion.

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    Related Documents

    Hazardous Substance Worksheet PDF

    Description

    Test your knowledge on chemical hazard symbols used for standardized communication about chemical safety. This quiz covers various symbols, their meanings, and handling procedures. Understanding these symbols is essential for safe laboratory practices and environmental protection.

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