Chemical Tests
Bayani Gaba-gaba
How do you prove that the gas bubbling from a reaction is hydrogen and not oxygen? How can you tell whether an unknown powder contains copper or sodium? Chemistry has a toolkit of simple tests that identify specific gases, ions, and substances quickly and reliably.
In this lesson you will learn the standard tests for five gases, the flame test for metal ions, the carbonate test, and the water test. These tests are examined frequently and are essential practical skills.
Manufura
- Describe tests for these gases: hydrogen, oxygen, carbon dioxide, ammonia and chlorine
- Describe how to carry out a flame test
- Know the colours formed in flame tests for Li+, Na+, K+, Ca2+ and Cu2+
- Describe a test for CO32- using hydrochloric acid and identifying the gas evolved
- Describe a test for the presence of water using anhydrous copper(II) sulfate
Takardar Darasi
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Nazarin Darasi
Barka da kammala darasi akan Chemical Tests. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which gas relights a glowing splint? A) Hydrogen B) Oxygen C) Carbon dioxide D) Chlorine Answer: B
- The flame test colour for potassium ions is: A) Crimson red B) Yellow C) Lilac D) Blue-green Answer: C
- Limewater turns milky in the presence of: A) Oxygen B) Hydrogen C) Carbon dioxide D) Nitrogen Answer: C
- Anhydrous copper(II) sulfate turns blue when it comes into contact with: A) Oxygen B) Water C) Acid D) Carbon dioxide Answer: B
- Which gas bleaches damp litmus paper? A) Ammonia B) Hydrogen C) Carbon dioxide D) Chlorine Answer: D
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Littattafan da ake ba da shawarar karantawa
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Chemical Tests? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.
