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methods of purification of organic compounds with diagrams ..
Q. Describe Structure of Solids? Ans. Solids are different from gases and liquids because they have a fixed shape. This definite shape occurs as the individual particles w
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150ml of a gas at 27C is heated to 77C at constant pressure.find the new volume of the gas.
why is electron gain enthalpy of oxygen greater than sulphur?
Electronegativity may be described as the power of an atom to attract electrons to itself in a chemical bond. It is the most important chemical parameter in calculating the type of
introduction to esters ,preparation, proprties, and their uses in daily life
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The enthalpy change (ΔH) in a reaction is equal to the heat input under conditions of constant pressure and temperature. It is not equal to the total energy change, as work may be
GROUP 2: ALKALINE EARTHS The elements known commonly as alkaline earths have atoms with the (ns) 2 design and almost always have the +2 oxidation state in their compound
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