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  2. Category:Urdu letters - Wikipedia

    en.wikipedia.org/wiki/Category:Urdu_letters

    Letters of the Urdu alphabet. Pages in category "Urdu letters" The following 36 pages are in this category, out of 36 total. This list may not reflect recent changes. A.

  3. Urdu alphabet - Wikipedia

    en.wikipedia.org/wiki/Urdu_alphabet

    The Urdu alphabet has up to 39 [4] or 40 [5] distinct letters with no distinct letter cases and is typically written in the calligraphic Nastaʿlīq script, whereas Arabic is more commonly written in the Naskh style.

  4. Alkyne - Wikipedia

    en.wikipedia.org/wiki/Alkyne

    A 3D model of ethyne (), the simplest alkyneIn organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbon—carbon triple bond. [1] The simplest acyclic alkynes with only one triple bond and no other functional groups form a homologous series with the general chemical formula C n H 2n−2.

  5. Category:Alkynes - Wikipedia

    en.wikipedia.org/wiki/Category:Alkynes

    Alkyne derivatives (7 C, 86 P) Alkynyl groups (4 P) P. Polyynes (1 C, 9 P) Pages in category "Alkynes" The following 27 pages are in this category, out of 27 total.

  6. Baṛī ye - Wikipedia

    en.wikipedia.org/wiki/Baṛī_ye

    Baṛī ye (Urdu: بَڑی يے, Urdu pronunciation: [ˈbəɽiː ˈjeː]; lit. ' greater ye ') is a letter in the Urdu alphabet (and other Indo-Iranian language alphabets based on it) directly based on the alternative "returned" variant of the final form of the Arabic letter ye/yāʾ (known as yāʾ mardūda) found in the Hijazi, Kufic, Thuluth, Naskh, and Nastaliq scripts. [1]

  7. Alkyl group - Wikipedia

    en.wikipedia.org/wiki/Alkyl_group

    First, five atoms comprise the longest straight chain of carbon centers. The parent five-carbon compound is named pentane (highlighted blue). The methyl "substituent" or "group" is highlighted red. According to the usual rules of nomenclature, alkyl groups are included in the name of the molecule before the root, as in methylpentane. This name ...

  8. List of reagents - Wikipedia

    en.wikipedia.org/wiki/List_of_reagents

    Name General Description Acetic acid: an organic acid; is one of the simplest carboxylic acids: Acetone: an organic compound; simplest example of the ketones: Acetylene: a hydrocarbon and the simplest alkyne; widely used as a fuel and chemical building block

  9. Cycloalkyne - Wikipedia

    en.wikipedia.org/wiki/Cycloalkyne

    Strained cycloalkynes are able to undergo all addition reactions typical to open chain alkynes. Due to the activated nature of the cyclic carbon–carbon triple bond, many alkyne addition-type reactions such as the Diels–Alder, 1,3-dipolar cycloadditions and halogenation may be performed using very mild conditions and in the absence of the ...