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Identification of Gases | Chemistry for Grade 11 (IGCSE) PDF Download

Identification of Gases

  • Numerous examinations for both anions and cations lead to the generation of gases, which subsequently require testing. 
  • The following table outlines the assessments for the gases specified in the curriculum:
    Identification of Gases | Chemistry for Grade 11 (IGCSE)
The document Identification of Gases | Chemistry for Grade 11 (IGCSE) is a part of the Grade 11 Course Chemistry for Grade 11 (IGCSE).
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FAQs on Identification of Gases - Chemistry for Grade 11 (IGCSE)

1. How can gases be identified in a laboratory setting?
Ans. Gases can be identified in a laboratory setting through various methods such as testing for solubility in water, using flame tests, and conducting chemical reactions to observe specific gas properties.
2. What are some common tests used to identify different gases?
Ans. Some common tests used to identify different gases include the pop test for hydrogen gas, the limewater test for carbon dioxide, and the test with moist red litmus paper for ammonia gas.
3. How can the presence of oxygen gas be confirmed?
Ans. The presence of oxygen gas can be confirmed by relighting a glowing splint, as oxygen supports combustion. If the splint reignites, it indicates the presence of oxygen.
4. How can the identification of hydrogen gas be carried out?
Ans. Hydrogen gas can be identified by the "pop" test, where a lighted splint produces a distinctive popping sound when introduced to hydrogen gas due to its high reactivity.
5. What are some safety precautions to be taken when identifying gases in a laboratory?
Ans. When identifying gases in a laboratory, it is important to work in a well-ventilated area, wear appropriate protective gear such as goggles and gloves, and handle gases with care to prevent accidents.
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