cuprous वाक्य
उदाहरण वाक्य
मोबाइल
- Copper can be lost from the matte in three ways : as cuprous oxide ( Cu 2 O ) dissolved in the slag, as sulfide copper dissolved in the slag or as tiny droplets ( or " prills " ) of matte suspended in the slag.
- His two key achievements are the experimental observation of the fine structure of Rayleigh scattering line due to Brillouin-Mandelstam light scattering on acoustic waves in condensed matter ( 1930 ) and the experimental discovery of the exciton ( in semiconductor crystals of cuprous oxide ) through evidence of its hydrogen-like optical spectrum.
- In the presence of oxygen and water, even the small amount of moisture in the atmosphere, the cuprous chloride forms copper ( II ) chloride and hydrochloric acid, the latter of which dissolves the metal and forms more cuprous chloride in a self-sustaining reaction that leads to the entire destruction of the object.
- In the presence of oxygen and water, even the small amount of moisture in the atmosphere, the cuprous chloride forms copper ( II ) chloride and hydrochloric acid, the latter of which dissolves the metal and forms more cuprous chloride in a self-sustaining reaction that leads to the entire destruction of the object.
- While the reaction can be performed using commercial sources of copper ( I ) such as cuprous bromide or iodide, the reaction works much better using a mixture of copper ( II ) ( e . g . copper ( II ) sulfate ) and a reducing agent ( e . g . sodium ascorbate ) to produce Cu ( I ) in situ.
- In the case at hand, heating acetate ( "'1 "') with chloranil gives the conjugated dieneone ( "'2 "'), and reaction of that compound with methylmagnesium bromide in the presence of cuprous chloride leads to addition of the methyl group to position 7 at the end of the conjugated system ( "'3 "').
- Copper will react with oxygen to form either brick red " cuprous oxide " ( copper ( I ) oxide, with 63.5 g of copper for 8 g of oxygen ) or black " cupric oxide " ( copper ( II ) oxide, with 32.7 g of copper for 8 g of oxygen ), and so has " two " equivalent weights.
- The reaction was named after Karl Wilhelm Rosenmund who together with his Ph . D . student Erich Struck discovered in 1914 that aryl halide reacts with alcohol water solution of potassium cyanide and catalytic amounts of cuprous cyanide at 200 �C . The reaction yields the carboxylic acid, not the nitrile, but Rosenmund speculated that the intermediate should be the nitrile . and Julius von Braun for example the use of ionic liquids as solvent for the reaction.
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