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  2. Multiple choice - Wikipedia

    en.wikipedia.org/wiki/Multiple_choice

    A multiple choice question, with days of the week as potential answers. Multiple choice (MC), [1] objective response or MCQ(for multiple choice question) is a form of an objective assessment in which respondents are asked to select only the correct answer from the choices offered as a list.

  3. Basic State Exam (Russia) - Wikipedia

    en.wikipedia.org/wiki/Basic_State_Exam_(Russia)

    The Russian language exam includes multiple-choice questions, full-answer tasks, an essay, and a summary. The exam lasts 235 minutes. Students listen to the summary text from an audio recording provided on a disk attached to the exam materials. Since 2018, a separate oral Russian language exam has also been conducted, with a duration of 15 minutes.

  4. Basic State Exam - Wikipedia

    en.wikipedia.org/wiki/Basic_State_Exam

    The Russian Language Exam includes multiple-choice questions, full-answer tasks, an essay, and a summary. The exam lasts 235 minutes. Students listen to the summary text from an audio recording provided on a disk attached to the exam materials. Since 2018, a separate oral Russian language exam has also been conducted, with a duration of 15 minutes.

  5. Exam - Wikipedia

    en.wikipedia.org/wiki/Exam

    There are two families of multiple-choice questions. [39] The first family is known as the True/False question and it requires a test taker to choose all answers that are appropriate. The second family is known as One-Best-Answer question and it requires a test taker to answer only one from a list of answers.

  6. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  7. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  8. Chemical compound - Wikipedia

    en.wikipedia.org/wiki/Chemical_compound

    A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds.

  9. General chemistry - Wikipedia

    en.wikipedia.org/wiki/General_chemistry

    General chemistry professors have been known to make tests worth a large portion of the course, and make them more challenging than the material presents itself as. Grade deflation, purposely adjusting the grades of a course to be lower, is also an issue of general chemistry courses at the undergraduate level.

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