Are You A Chemist? (Quiz)

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| By Aidil_adhaniICP0
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Aidil_adhaniICP0
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Quizzes Created: 1 | Total Attempts: 120
| Attempts: 120
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  • 1/12 Questions

    Suatu zat padat dilarutkan dalam air, ternyata larutan zat tersebut dapat menghantarkan arus listrik. Pernyataan yang tepat untuk menerangkan peristiwa tersebut ...

    • Dalam larutannya zat padat tersebut terurai sempurna menjadi ion-ion
    • Dalam larutannya zat padat tersebut terurai menjadi atom-atom
    • Dalam larutannya zat padat tersebut terurai menjadi molekul-molekul
    • Dalam larutannya zat padat tersebut terurai menjadi bersifat asam
    • Dalam larutannya zat padat tersebut terurai menjadi bersifat basa
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About This Quiz

Test your knowledge in chemistry with the 'Are You a Chemist? ' quiz! Explore questions on electrical conductivity of solutions, identify strong and weak electrolytes, and distinguish between electrolytic and non-electrolytic substances. Perfect for students and professionals looking to assess or refresh their chemistry skills.

Are You A Chemist? (Quiz) - Quiz

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  • 2. 

    Arus listrik dapat mengalir melalui larutan elektrolit karena ...

    • Arus mengalir dari kutub positif ke kutub negatif

    • Media yang memungkinkan terjadinya arus listrik

    • Lampu menyala saat listrik dialirkan

    • Muncul gelembung gas

    • Terdapat ion-ion di dalam larutan yang dapat bergerak bebas

    Correct Answer
    A. Terdapat ion-ion di dalam larutan yang dapat bergerak bebas
    Explanation
    Ketika ada ion-ion di dalam larutan yang dapat bergerak bebas, mereka dapat membawa muatan listrik dan mengalirkan arus listrik melalui larutan. Ini terjadi karena ion-ion tersebut dapat berpindah dari kutub positif ke kutub negatif, sehingga arus dapat mengalir melalui larutan elektrolit.

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  • 3. 

    Data eksperimen daya hantar listrik beberapa larutan                Larutan                        Pengamatan Nyala Lampu   Gelembung Gas        1 Terang Ada      2 Tidak menyala Tidak ada      3 Tidak menyala Ada      4 Tidak menyala Tidak ada      5 Menyala Ada Berdasarkan data di atas yang merupakan larutan non – elektrolit adalah nomor …

    • 1 dan 5

    • 2 dan 3

    • 2 dan 4

    • 1 dan 4

    • 3 dan 5

    Correct Answer
    A. 2 dan 4
    Explanation
    Based on the observations given, a non-electrolyte solution is one that does not conduct electricity and does not produce gas bubbles when an electric current is passed through it. Looking at the data, we can see that solutions 2 and 4 do not light up the lamp and do not produce gas bubbles. Therefore, solutions 2 and 4 are the non-electrolyte solutions.

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  • 4. 

    Di antara larutan dibawah ini :
    1. HBr 1 M
    2. Al(OH)2 0,2 M
    3. CH3COOH 0,3 M
    4. NaCl 0,4 M
    5. HCl 0,5 M
      yang memiliki daya hantar listrik terbesar adalah...

    • 1

    • 2

    • 3

    • 4

    • 5

    Correct Answer
    A. 1
    Explanation
    The correct answer is 1. The solution with the highest electrical conductivity is HCl 0.5 M. This is because HCl is a strong acid and dissociates completely in water to form H+ and Cl- ions, which are responsible for conducting electricity. The other solutions (HBr, Al(OH)2, CH3COOH, and NaCl) either have weaker acids or are not strong electrolytes, resulting in lower electrical conductivity.

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  • 5. 

    Dari suatu eksperimen diperoleh data sebagai berikut: No. Bahan Rumus kimia Nyala lampu 1. 2. 3 Hidrogen klorida Gula Asam cuka HCl C12H22O11 CH3COOH Terang Tidak nyala Menyala   Kekuatan elektrolit yang sesuai data di atas adalah...

    • Asam cuka < Gula

    • Asam cuka < Asam klorida

    • Asam klorida < Asam cuka

    • Gula > Asam cuka

    • Gula = Asam Klorida

    Correct Answer
    A. Asam cuka < Asam klorida
    Explanation
    The given data shows that the lamp only lights up when the substance is either hydrochloric acid (HCl) or vinegar (CH3COOH), but not when it is sugar (C12H22O11). This indicates that hydrochloric acid and vinegar are strong electrolytes, while sugar is a non-electrolyte. Since vinegar is unable to light up the lamp, it can be concluded that vinegar is a weaker electrolyte compared to hydrochloric acid. Therefore, the correct answer is "Asam cuka < Asam klorida".

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  • 6. 

    Zat elektrolit dan elektrolit lemah dapat menghantarkan listrik. Hal ini disebabkan oleh …

    • Adanya kisi kristal yang saling terikat dengan kuat

    • Adanya pelepasan elektron dalam zat tersebut

    • Terjadi serah terima elktron antara kation dan anion

    • Tidak adanya proses ionisasi atau pembentukan ion dalam senyawa tersebut

    • Adanya proses pembentukan ion dan elektron dapat bergerak bebas yang membentuk lautan elektron

    Correct Answer
    A. Adanya proses pembentukan ion dan elektron dapat bergerak bebas yang membentuk lautan elektron
    Explanation
    The correct answer is "Adanya proses pembentukan ion dan elektron dapat bergerak bebas yang membentuk lautan elektron." This is because electrolytes and weak electrolytes are able to conduct electricity due to the presence of ions and free-moving electrons in the substance, which form an electron sea. This allows for the flow of electric current.

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  • 7. 

    Zat non – elektrolit dalam larutannya akan berada dalam bentuk …

    • Molekul

    • Kation

    • Anion

    • Senyawa ion

    • Padatan

    Correct Answer
    A. Molekul
    Explanation
    Zat non-elektrolit dalam larutannya akan berada dalam bentuk molekul. Non-elektrolit adalah zat yang tidak mengion saat larut dalam air. Molekul adalah partikel yang terbentuk dari dua atau lebih atom yang terikat bersama melalui ikatan kimia. Dalam larutan non-elektrolit, zat tersebut tetap berada dalam bentuk molekul tanpa mengalami pemisahan atau pembentukan ion.

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  • 8. 

    Diantara bahan berikut:
    1. Gula
    2. Garam
    3. Cuka
    4. Urea
    5. Pemutih
    6. Alkohol
    7. asam sulfat
    8. Bensin
    Yang larutannya dapat menghantarkan arus listrik adalah....

    • 1, 2, 3, 7

    • 1, 3, 5, 8

    • 2, 3, 5, 7

    • 1, 4, 6, 8

    • 2, 3, 4, 5

    Correct Answer
    A. 2, 3, 5, 7
    Explanation
    The substances that can conduct electricity are those that are able to dissociate into ions in solution. In this case, the substances that can conduct electricity are garam (salt), cuka (vinegar), and alkohol (alcohol). These substances are able to dissociate into ions when dissolved in water, allowing for the flow of electric current.

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  • 9. 

    1. Berikut hasil percobaan daya hantar listrik dari beberapa larutan
    Zat Lampu Pengamatan lain 1. 2. 3. 4. Nyala terang Nyala redup Tidak nyala Tidak nyala Banyak gelembung Banyak gelembung Sedikit gelembung Tidak ada gelembung Dari data di atas, pasangan yang digolongkan elektrolit kuat dan elektrolit lemah berturut-turut adalah...

    • 1 dan 2

    • 1 dan 3

    • 1 dan 4

    • 2 dan 4

    • 3 dan 4

    Correct Answer
    A. 1 dan 2
    Explanation
    Based on the given data, the substances in pair 1 and 2 are classified as strong electrolytes and weak electrolytes respectively. This is because the lamp in pair 1 lights up brightly, indicating a high conductivity of electricity, while the lamp in pair 2 only lights up dimly, indicating a lower conductivity of electricity. Therefore, pair 1 can be classified as a strong electrolyte and pair 2 can be classified as a weak electrolyte.

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  • 10. 

    Dari beberapa contoh larutan ini, yang dapat menghanarkan listrik paling baik adalah larutan ...

    • NaCl 1 M

    • CH3COOH 1 M

    • NaOH 1 M

    • HCl 1 M

    • H2SO4 1 M

    Correct Answer
    A. H2SO4 1 M
    Explanation
    H2SO4 1 M is the correct answer because it is a strong acid that completely ionizes in water, producing a high concentration of ions. This high concentration of ions allows for better conductivity of electricity compared to the other solutions listed. NaCl, CH3COOH, NaOH, and HCl are all weak electrolytes, meaning they only partially ionize in water and therefore have lower concentrations of ions.

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  • 11. 

    1. K2+ dan SO42-
    2. K+ dan SO4-
    3. K+ dan SO42-
    4. 2K+ dan SO4-
    5. 2K2+ dan SO42-
    Di antara Hasil Reaksi ionisasi diatas yang tepat untuk senyawa K2SO4 adalah ….

    • 1

    • 2

    • 3

    • 4

    • 5

    Correct Answer
    A. 5
    Explanation
    The correct answer is 5 because K2SO4 is a compound consisting of two K+ ions and one SO42- ion. Therefore, the correct combination of ions from the given options is 2K2+ and SO42-.

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  • 12. 

    Diantara bahan berikut:
    1. Gula
    2. Garam
    3. Cuka
    4. Urea
    5. Pemutih
    6. Alkohol
    7. asam sulfat
    8. Bensin
    yang larutannya dapat menghantarkan arus listrik adalah....

    • 1, 2, 3, 7

    • 1, 3, 5, 8

    • 2, 3, 5, 7

    • 1, 4, 6, 8

    • 2, 3, 4, 5

    Correct Answer
    A. 1, 4, 6, 8
    Explanation
    The substances that can conduct electricity are those that are able to dissociate into ions when dissolved in water. Among the given options, gula (sugar), garam (salt), asam sulfat (sulfuric acid), and alkohol (alcohol) are the substances that can dissolve in water and dissociate into ions, allowing the flow of electric current. Therefore, options 1, 4, 6, and 8 are the correct choices.

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  • Current Version
  • Mar 29, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 30, 2011
    Quiz Created by
    Aidil_adhaniICP0

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