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Q. Describe the Half -Life property of radioactive decay? Ans. The decay of a nucleus is a random event. It is impossible to predict which nucleus will decay and when.
ACTINIUM AND THE ACTINIDES Following actinium (group 3) are the 14 components of the actinide series (represented by the symbol An) combined with progressive filling of the 5
Principle of chromatography - Purification of organic compounds The method of chromatography is based on the difference in the rates at which the components of a mixture move t
As compared to covalent compounds, electrovalent compounds generally have: (1) Low melting points and low boiling points (2) Low melting points and high boiling points (3
Explain rules of pericyclic The pericyclic selection rules say absolutely nothing about the position of equilibrium in every case. These rules refer to rates of reactions, not
Q. Calculate standard state enthalpy of the substance? Ans. To determine ΔH o f for calcium carbonate, calcium and carbon are burned in a calorimeter. Noti
Terylene: Preparation: terylene is prepared by a polyconensation reaction between a dicarboxylic acid and a idol. Properties: a fully aliphatic polyester are not of muc
What is piezoelectricity Piezoelectricity provides us a means of converting electrical energy to presume new geometric positions and mechanical dimensions of the substance are
what is degree of freedom?
what are the chemical poperties of p-block elements ?
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