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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.
Which one has zero oxidation state in s block
introduction to esters ,preparation, proprties, and their uses in daily life
Calculate the pressures required to achieve a density of 220 g dm -3 , 330 g dm -3 , and 440 g dm -3 at temperatures of 305 K and 350 K. Properties, like the solvent powe
The compound in which cation is isoelectronic with anion is : (1) NaCl (2) CsF (3) NaI (4) K 2 S Ans: K 2 S
Why bromoethane are insoluble Because only two layers form, two of the three substances are mutually soluble. we know that water and bromoethane are insoluble-they form two lay
Impurities of solids Impurities are frequently added to materials to improve the properties. For example, carbon added in small amounts to iron makes steel, which is stronger t
why exception is seen in lanthanoids
all about isotopes
Aluminium metal is frequently used as a reducing agent for the extraction of metals such as Chromium, Manganese etc. Explain why? Ans) The free energy change for the formation o
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