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Polystyrene sulfonic acid, the acid whose salts are the polystyrene sulfonates, has the idealized formula (CH 2 CHC 6 H 4 SO 3 H) n. The material is prepared by sulfonation of polystyrene: (CH 2 CHC 6 H 5) n + n SO 3 → (CH 2 CHC 6 H 4 SO 3 H) n. Several methods exist for this conversion, which can lead to varying degree of sulfonation.
Currently the books are available in eight languages — Marathi, English, Hindi, Urdu, Kannada, Telugu, Sindhi and Gujarati. 35 books titled My District for Std III Geography for each district in the state are available on the website. Balbharati had published class XI and Class XII new syllabus from 2019-20 and 2020-21 respectively.
A packet or sachet is a small bag or pouch, made from paper, foil, plastic film or another type of packing material, often used to contain single-use quantities of foods or consumer goods such as ketchup or shampoo. Packets are commonly opened by making a small rip or tear in part of the package, and then squeezing out the contents.
Although its most usual definition is that listed under "packet" (see link above), a sachet / ˈ s æ ʃ eɪ / can also mean a small scented cloth bag filled with herbs, potpourri, or aromatic ingredients; [1] [2] or a small porous bag or packet containing a material intended to interact with its atmosphere; for example, desiccants are usually packed in sachets which are then placed in larger ...
Hindi–Urdu transliteration (or Hindustani transliteration) is essential for Hindustani speakers to understand each other's text, and it is especially important considering that the underlying language of both the Hindi & Urdu registers are almost the same. [4]
VILNIUS (Reuters) -Lithuania has found no sign that the crash on Monday of a DHL cargo plane was caused by sabotage, and believes technical issues were a more likely explanation, officials said on ...
From January 2008 to May 2012, if you bought shares in companies when David C. Novak joined the board, and sold them when he left, you would have a 0.6 percent return on your investment, compared to a -4.2 percent return from the S&P 500.
Dilip Mahalanabis was born on November 12, 1934 in Kishoreganj district of Bengal Province of British India. He graduated from the Calcutta Medical College as a paediatrician in 1958 after working there as an intern.