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  2. Past paper - Wikipedia

    en.wikipedia.org/wiki/Past_paper

    A past paper is an examination paper from a previous year or previous years, usually used either for exam practice or for tests such as University of Oxford, [1] [2] University of Cambridge [3] College Collections. Exam candidates find past papers valuable in test preparation.

  3. List of chemistry journals - Wikipedia

    en.wikipedia.org/wiki/List_of_chemistry_journals

    This is a list of scientific journals in chemistry and its various subfields. For journals mainly about materials science, see List of materials science journals. A

  4. AP Chemistry - Wikipedia

    en.wikipedia.org/wiki/AP_Chemistry

    The 2014 AP Chemistry exam was the first administration of a redesigned test as a result of a redesigning of the AP Chemistry course. The exam format is now different from the previous years, with 60 multiple choice questions (now with only four answer choices per question), 3 long free response questions, and 4 short free response questions.

  5. List of important publications in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_important...

    Importance: First major text on polymer chemistry; presents both organic and physical chemistry aspects. Written by a chemist who made major contributions to the physical chemistry of polymers, for which he won the Nobel prize in 1974.

  6. Joint Admission Test for Masters - Wikipedia

    en.wikipedia.org/wiki/Joint_Admission_Test_for...

    The exam is Computer Based Test (CBT). The Seven Papers of respective subject namely mathematics, physics, chemistry, mathematical statistics, geology, biotechnology and economics. Biological science was removed in 2020 and economics introduced in 2021. [4] The exam is three hours and is conducted only in English.

  7. Scientific literature - Wikipedia

    en.wikipedia.org/wiki/Scientific_literature

    Scientific papers have been categorised into ten types. Eight of these carry specific objectives, while the other two can vary depending on the style and the intended goal. [4] Papers that carry specific objectives are: [4] An original article provides new information from original research supported by evidence.

  8. Scientific writing - Wikipedia

    en.wikipedia.org/wiki/Scientific_writing

    Nobel Prize-winning chemist Roald Hoffmann has stated that, in the chemical sciences, drawing chemistry is as fundamental as writing chemistry. [27] Different types of citation and reference systems are used in scientific papers. The specific citation style scientific articles use depends on the journal in which the article is published.

  9. Litmus - Wikipedia

    en.wikipedia.org/wiki/Litmus

    Litmus paper after being used. The main use of litmus is to test whether a solution is acidic or basic, as blue litmus paper turns red under acidic conditions, and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple. [2]