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Q. Show Sulphide Minerals?
In these minerals metals are present as their sulphides. For example, iron pyrites (FeS2), calcocite (CU2S), chalcopyrite (CuFeS2), zinc blende (ZnS), argentite (Ag2S), cinnabar (HgS), galena (PbS), mille rite (NiS), etc.
Q. Define Elements and Compounds? Pure substances are categorized into two categories that are elements and compounds. An element is a substance that can't be separated into
i) Define a membrane in a process engineering context. Two of the main desired attributes of membranes are high permeability and high selectivity. Define permeability and select
Draw the structures of white phosphorus and red phosphorus. Which one of these two types of phosphorus is more reactive and why?
why is lead in both group I and II
Interactive periodic table In this interactive periodic table animation you can view details of all components through clicking on it. You can select the colored through option
methods for preparing trihydric alcohols
nuclear quadruple resonace
why 4f electrons do not take part in bonding?
respiration. is it a exothermic or endothermic
does nitro compounds cause any harmful effect on living things?
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