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why YbS and YbI2 are semiconducting solids but LaS and LaI2 show metallic character..
Q. Describe the ion exchange process of softening hard water. What are its advantages? Ans. Determination of ion exchange or Deionization process: In this pro
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LITHIUM AND BERYLLIUM MARKEDLY DIFFERENT FROM OTHER MEMBERS OF THEIR RESPECTIVE GROUP?.
transition elements form coloured compound. Why?
explain nitric oxide becomes brown when released in air
The f-block elements contains of two series of inner transition elements i.e. lanthanoids (the fourteen elements subsequent lanthanum) and actinoids (the fourteen elements subseque
what is libermaan''s nitroso reaction .what is mechanism of this reaction
Determine the rate constant from the concentration-time dependence: Time (s) [Reactant](M) 0.0 0.0451 2.0 0.0421 5.0 0.0376 9.0 0.0316 15 0.0226 Use SI units, that is, seconds fo
Acid dyes: These are commonly salts of sulphonic acids and can be helpful to silk, wool and nylon. The presence of sulphonic acid group creates them water soluble. These dyes a
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