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The latter process provides a high-yield route to 1,1-binaphthol: [22] Such compounds are intermediates in the synthesis of BINAP and its derivatives. [20] Copper(II) chloride dihydrate promotes the hydrolysis of acetonides, i.e., for deprotection to regenerate diols [23] or aminoalcohols, as in this example (where TBDPS = tert ...
Bangladesh Chemical Society was founded in 1972 following the Independence of Bangladesh in 1972 by faculty members of the University of Dhaka such as Mokarram Hussain Khundker. Founding members also included professors from the University of Rajshahi , Bangladesh University of Engineering and Technology , and Bangladesh Council of Scientific ...
Class 1 to Class 12 December Karatitola C.M.S. Memorial High School Syllabus 1977 Kurmitola High School KhIIlkhet, Dhaka Syllabus 1948 Class 1 to Class 10 Motijheel Government Boys' High School: Location Motijheel, Dhaka Syllabus 1957 Class 1 to Class 12 The Ark Int'l School [49] Location H-11, Road-28 (Old), Dhanmondi R/A, Dhaka-1209
10 Minute School (Bengali: ১০ মিনিট স্কুল, abbreviated as 10MS) is an online educational platform in Bangladesh created in 2015 by Ayman Sadiq. [1] [2] The platform covers academic classes from classes 1 to 12 covering the entire academic syllabus of the Bangladesh schooling system, university admission subjects covering different branches of study, and skills ...
All public schools and many private schools in Bangladesh follow the curriculum of NCTB. Starting in 2010, every year free books are distributed to students between Grade-1 to Grade-10 to eliminate illiteracy. [6] These books comprise most of the curricula of the majority of Bangladeshi schools. There are two versions of the curriculum.
Copper(I) chloride is produced industrially by the direct combination of copper metal and chlorine at 450–900 °C: [11] [12] 2 Cu + Cl 2 → 2 CuCl Copper(I) chloride can also be prepared by reducing copper(II) chloride with sulfur dioxide , or with ascorbic acid ( vitamin C ) that acts as a reducing sugar : [ 13 ] [ 14 ]
Holy Cross Girls' High School is a Catholic primary and secondary school for girls, located at Tejgaon in Dhaka, Bangladesh. It serves students from class 1 through class 10. Although run by the Roman Catholic Church, the school is open to students of all religions. [1]
Water is closer to the copper than chlorate, 1.944 Å compared to 2.396 Å, exhibiting the Jahn-Teller effect. The chlorate groups take the shape of a distorted tetrahedron. At 298 K (25 °C), the chlorine-oxygen distances in each chlorate ion are 1.498, 1.488 and 1.468 Å, with the longest being the oxygen next to copper.