WebApr 12, 2024 · Iron (III) oxide, often known as ferric oxide, is a compound in which the iron atom has an oxidation state of +3. Fe2O3 is the chemical formula for this substance. Iron is a reducing agent, but oxygen is an excellent oxidising agent. When exposed to oxygen, the iron atom easily gives away electrons. The chemical reaction is described as follows:
Prevention of Rusting of Iron - Methods and Examples Chemistry
WebSep 9, 2024 · Torque on a dipole in a uniform electric field. Torque = force X perpendicular distance τ= qE ×2 a sinθ, τ= pE sinθ Or τ= p × E. Torque is zero when p and E are in the same direction. Torque is maximum ( = pE) , when p and E are perpendicular. The dipole rotates in a uniform electric field. WebAug 26, 2024 · Revision notes for class 12 for Maths, Biology, Chemistry and Physics subjects are available here. Notes are available here for all the chapters. These are prepared in downloadable PDF format, so that students can easily download and study offline as well. small work space at home
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WebApr 23, 2024 · FIRST LAW The amount of the substance deposited or liberated at an electrode is directly proportional to the quantity of electricity passed through an electrolyte I = Current strength in amp., t = time in sec., Q = Quantity of charge (coulombs) Z is a constant known as Electrochemical equivalent WebThings to remember Due to the presence of impurities and uneven surface of iron, regions of different potentials are developed on the surface of the iron. Because of this, a tiny cell is formed on the surface where water acts as an electrolyte. Impurities such as Carbon, Phosphorous and Arsenic are removed as volatile oxides. The roasted ore is then heated … WebDec 1, 2024 · CBSE Class 12 Physics Chapter 5 Magnetism and Matter notes PDF link is available below of this article. The best website for CBSE students now provides … small work station