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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.
The Urdu alphabet (Urdu: اُردُو حُرُوفِ تَہَجِّی, romanized: urdū ḥurūf-i tahajjī) is the right-to-left alphabet used for writing Urdu.It is a modification of the Persian alphabet, which itself is derived from the Arabic script.
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.
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.
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]
Using various techniques, polyynes H(−C≡C−) n H with n up to 4 or 5 were synthesized during the 1950s. [12] Around 1971, T. R. Johnson and D. R. M. Walton developed the use of end-caps of the form – SiR 3, where R was usually an ethyl group, to protect the polyyne chain during the chain-doubling reaction using Hay's catalyst (a copper(I)–TMEDA complex).
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
The nuqta, and the phonological distinction it represents, is sometimes ignored in practice; e.g., क़िला qilā being simply spelled as किला kilā.In the text Dialect Accent Features for Establishing Speaker Identity, Manisha Kulshreshtha and Ramkumar Mathur write, "A few sounds, borrowed from the other languages like Persian and Arabic, are written with a dot (bindu or nuqtā).