Chemistry
Describe Properties of Copper Sulphate
Properties of Copper Sulphate (CuSO4.5H2O) Physical properties The anhydrous salt is colourless but the hydrated salt is blue in colour. It readily dissolves in water…
Periodic Table
Chemistry
Laboratory Preparation of Copper Sulphate (Blue Vitriol)
Laboratory Preparation of Copper Sulphate (Blue Vitriol): In laboratory it is prepared by dissolving cupric oxide (or) cupric hydroxide (or) cupric carbonate in dilute H2SO4…
Chemistry
What are the Uses of Potassium Dichromate?
Potassium Dichromate is used for the Chromyl chloride test. Potassium dichromate is used for preparing strong cleaning solutions for glassware and for etching materials. When…
Chemistry
All Transition Elements are d-block elements but d-block elements are not transition
All transition elements are d-block elements, but all d-block elements do not transition elements. D block elements are chemical elements having electrons filling to their…
Chemistry
Alcohols (C2H5 — OH) are Covalent Compounds why they Soluble in Water?
Although Alcohols (C2H5 — OH) are covalent compounds but they are soluble in water. Covalent compounds are generally insoluble in water. But some organic compounds…
Chemistry
Describe Electrolytic Refining and Uses of Gold
Electrolytic refining Electrolytic refining method is used when very pure gold is required. The impure gold is made the anode while a thin sheet of pure…
Chemistry
Describe Properties of Gold
Properties of Gold: Physical properties i) Gold is a lustrous yellow metal which melts at 1063°C to a green liquid and boils at 2610°C. ii)…
Chemistry
Explain Extraction from Gold Ores in Mac Arthur Forrest Cyanide Process
The extraction of gold from the sulphide or telluride ore involves the following steps : i) Crushing, grinding and concentration The gold ore is crushed…
Chemistry
Explain Occurrence and Principles of Extraction of Gold
Occurrence Gold is mainly found in the native state either mixed with quartz in ancient rocks (vein gold) or scattered in sand and gravel (placer…
Chemistry
Why does the size of Ions gradually decrease in a period from Left to Right?
In any period as one goes from left to right the atomic number of elements increases. With the increase of atomic number, the number of…
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