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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. C++ - Wikipedia

    en.wikipedia.org/wiki/C++

    A class containing a pure virtual function is called an abstract class. Objects cannot be created from an abstract class; they can only be derived from. Any derived class inherits the virtual function as pure and must provide a non-pure definition of it (and all other pure virtual functions) before objects of the derived class can be created.

  4. Central Board of Secondary Education - Wikipedia

    en.wikipedia.org/wiki/Central_Board_of_Secondary...

    On 12 April 2018, the police said that Rakesh Kumar, who leaked the class 12 economics paper, had leaked class 10 mathematics paper also. [40] Consequently, the Central Board of Secondary Education has put in place a system of "encrypted" question papers, which are supposed to be printed by the schools half an hour before the exam starts.

  5. Wikipedia : Requested articles/Applied arts and sciences ...

    en.wikipedia.org/wiki/Wikipedia:Requested...

    Somenath Biswas - professor of computer science, IIT Kanpur; doctoral adviser of Manindra Agarwal; author of several papers and inventor of Agrawal-Biswas Identity Testing; interested in logic and theoretical computer science in general; invented the concept of 'solution preserving universal relations" and "NP Creative Sets" along with Manindra ...

  6. IUPAC nomenclature of organic chemistry - Wikipedia

    en.wikipedia.org/wiki/IUPAC_nomenclature_of...

    The groups are on carbon atoms 3 and 9. As there are two, we write 3,9-dione. The numbering of the molecule is based on the ketone groups. When numbering from left to right, the ketone groups are numbered 3 and 9. When numbering from right to left, the ketone groups are numbered 15 and 21. 3 is less than 15, therefore the ketones are numbered 3 ...

  7. Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia

    Wikipedia [c] is a free-content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki.

  8. Copper(II) sulfate - Wikipedia

    en.wikipedia.org/wiki/Copper(II)_sulfate

    Copper(II) sulfate is an inorganic compound with the chemical formula Cu SO 4.It forms hydrates CuSO 4 ·nH 2 O, where n can range from 1 to 7. The pentahydrate (n = 5), a bright blue crystal, is the most commonly encountered hydrate of copper(II) sulfate, [10] while its anhydrous form is white. [11]

  9. List of Stuyvesant High School people - Wikipedia

    en.wikipedia.org/wiki/List_of_Stuyvesant_High...

    Arthur M. Jolly (1987)' [84] – Nicholl Fellowship in Screenwriting, playwright of Past Curfew and A Gulag Mouse; student of Frank McCourt Alissa Quart (1989) [ 85 ] – critic, journalist, poet, and editor; author of Republic of Outsiders: The Power of Amateurs, Dreamers and Rebels, Hothouse Kids: The Dilemma of the Gifted Child, Branded: The ...