结果1 题目18 Which substance causes the brown colour of aqueous bromine to disappear?A AB HH HH H C - C =C H-C→C→ C H C一C-O -H HH HH CD HH HO1H -C一C CC O -H/H HH n 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
相关知识点: 试题来源: 解析 bromine(water)(1) not:bromidecolourless(1)aqueous silver nitrate(1)ye;;ow precipitate(1)named indicator/solution of copper salt(1)correct colour change/pH/blue precipitate(1) 反馈 收藏
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Define bromothymol blue. bromothymol blue synonyms, bromothymol blue pronunciation, bromothymol blue translation, English dictionary definition of bromothymol blue. Noun 1. bromothymol blue - a dye used as an acid-base indicator bromthymol blue acid-base
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Chlorine, Bromine, Hexabromocyclododecane (HBCDD), Polybrominated biphenyls (PBBs), Polybrominated diphenyl ethers (PBDEs), Tris(2-chloroethyl) phosphate (TCEP), Tris(1,3-dichloro-2-propyl) phosphate (TDCPP) Poly nuclear aromatic Polynuclear aromatic hydrocarbons (PAHs) ...
(e) A student added aqueous bromine to alkene C.C HCH2CH HH Describe the colour change seen and draw the structure of the product. Show all of the atoms and all of the bonds.colour change from... to...…structure(f) Two different alcohols can be produced from alkene B by an addi...
The Molisch reaction was strongly positive with both substances, while both gave a colour characteristic of hexoses and methyl- Beaver (Castor fiber) I HAVE just found a short reference in the Bulletin to a pentoses with !l-naphthol reagent'. Neither preparation had any reducing properties ...
The dyestuffs are made by interacting an aqueous suspension of a copper phthalocyanine poly-sulphonchloride, which may or may not contain sulphonic acid groups, with at least one molecular proportion of an amine of the formula NH2CH2.CH2X, where X is chlorine, bromine or sulphato and the ...
In examples, allene is added to bromine in glacial acetic acid until the solution becomes colourless, the solution is poured into ice water, ether added and 2,3-dibromopropene separated from the ethereal layer by distillation. 2-bromo-3-chloropropene is prepared by adding an equimolar solution...