Soal Ulangan Harian Koloid

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Jefrisoni
J
Jefrisoni
Community Contributor
Quizzes Created: 1 | Total Attempts: 1,447
| Attempts: 1,447
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/8 Pertanyaan

    Penghamburan berkas sinar oleh sistem koloid disebut efek tyndall

    • Benar
    • Salah
Please wait...
About This Quiz

Pilihlah Salah satu jawaban yang paling benar ! SMA NEGERI UNGGUL ACEH TIMUR2011

Soal Ulangan Harian Koloid - Quiz

Quiz Preview

  • 2. 

    Sifat koagulasi koloid terdapat dalam proses pembuatan tahu dari air kedelei dengan batu tahu

    • Benar

    • Salah

    Correct Answer
    A. Benar
    Explanation
    The statement is correct because the process of making tofu involves coagulating the soy milk using a coagulant, such as gypsum or nigari, which causes the proteins in the soy milk to form curds. This coagulation process is essential in the production of tofu, as it helps to give tofu its characteristic texture and structure.

    Rate this question:

  • 3. 

    Di antara zat berikut ini yang bukan merupakan sistem koloid ialah:  

    • Mentega

    • Kaca Warna

    • Air Laut

    • Santan

    • Mutiara

    Correct Answer
    A. Air Laut
    Explanation
    Air laut merupakan sistem koloid karena terdiri dari partikel-partikel kecil yang terdispersi di dalam medium cair. Partikel-partikel tersebut terdiri dari garam, mineral, organisme kecil, dan bahan-bahan lain yang terlarut dalam air laut. Sistem koloid terbentuk ketika partikel-partikel tersebut tidak larut sepenuhnya dalam air laut dan tetap terdispersi di dalamnya. Oleh karena itu, air laut merupakan sistem koloid.

    Rate this question:

  • 4. 

    Suatu sistem koloid, partikelnya bersifat antara lain:  

    • Memiliki diameter < 0,1 mµ

    • Cepat mengendap jika didiamkan

    • Dapat menyala jika ke dalamnya dialiri arus listrik

    • Dapat terlihat jelas dengan mikroskop ultra tetapi tidak tampak dengan mikroskop biasa

    • Tidak dapat terpisah dengan penyaring biasa tetapi dapat terpisah dengan penyaring ultra

    Correct Answer
    A. Tidak dapat terpisah dengan penyaring biasa tetapi dapat terpisah dengan penyaring ultra
    Explanation
    The given answer states that the colloid system cannot be separated by a normal filter but can be separated by an ultrafilter. This is because colloid particles have a diameter smaller than 0.1 mµ, which is too small to be filtered out by a normal filter. However, an ultrafilter has smaller pores that can trap and separate these small particles, allowing the colloid system to be separated. Additionally, the other properties mentioned, such as rapid sedimentation when left undisturbed and the ability to conduct electricity, are not relevant to the separation of the colloid system.

    Rate this question:

  • 5. 

    Koloid yang mempunyai fase terdispersi padat dan fase pendispersi cair disebut…

    • Emulsi

    • Sol

    • Aerosol

    • Buih

    • Emulsi Padat

    Correct Answer
    A. Sol
    Explanation
    A sol is a type of colloid where the dispersed phase is solid and the dispersing medium is liquid. In a sol, solid particles are finely dispersed and dispersed throughout the liquid medium. This allows for a stable suspension of solid particles in liquid. Sol is different from emulsion, aerosol, and foam, as they involve different combinations of dispersed and dispersing phases.

    Rate this question:

  • 6. 

    Susu akan membentuk koloid hidrofob jika didispersikan dalam air

    • Benar

    • Salah

    Correct Answer
    A. Salah
    Explanation
    Jawaban yang benar adalah "Salah". Susu tidak akan membentuk koloid hidrofob jika didispersikan dalam air. Sebaliknya, susu akan membentuk koloid hidrofilik karena partikel lemak dalam susu akan terdispersi dengan baik dalam air. Koloid hidrofob terbentuk ketika partikel-partikel nonpolar terdispersi dalam medium polar, seperti minyak dalam air.

    Rate this question:

  • 7. 

    Beberapa cara pembuatan koloid(1) mengalirkan udara dalam larutan H2S(2) menggiling serbuk belerang & dicampur dalam medium(3) menambah HCl pada larutan Na2S2O3(4) menambah larutan AlCl3 ke dalam endapan Al(OH)3Pembuatan koloid dengan cara dispersi adalah…..

    • 1,2,3

    • 1,3

    • 2,4

    • 4

    • 1,2,3,4

    Correct Answer
    A. 2,4
    Explanation
    The correct answer is 2,4. This is because the process of dispersing colloids involves two steps mentioned in the answer choices. Step 2 involves the introduction of air into the H2S solution, which helps in the dispersion of the colloidal particles. Step 4 involves adding AlCl3 solution to the precipitate of Al(OH)3, which leads to the formation of a colloidal solution. Therefore, the combination of steps 2 and 4 is the correct explanation for the method of colloid production by dispersion.

    Rate this question:

  • 8. 

    Jika bubuk agar-agar diberi air lalu dimasak, maka setelah dingin akan terjadi sistem koloid yang berdasarkan jenis wujud zat terdispersi dan pendispersinya dapat digolongkan sebagai

    • Gel

    • Emulsi Padat

    • Sol

    • Hidrosol

    • Suspensi

    Correct Answer
    A. Emulsi Padat
    Explanation
    When agar-agar powder is mixed with water and cooked, it forms a gel-like substance when it cools down. This indicates that the dispersed phase (agar-agar) is in solid form, and the dispersing medium (water) is able to form a stable colloidal system. Therefore, the correct classification for this system is "Emulsi Padat" or solid emulsion.

    Rate this question:

Quiz Review Timeline (Updated): Jul 22, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jul 22, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 22, 2011
    Quiz Created by
    Jefrisoni
Back to Top Back to top
Advertisement