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The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
properties and effects
x gram of metal reacts with chlorine to form y gram of metal chloride.calculate equivalent mass of metal.
what is meant by dumas methad?give its functioning and uses
explain ion-exchange process for slution of hard water
Number of protons, neutrons and electrons in the element 231/89 y is: (1) 89, 231, 89 (2) 89, 89, 242 (3) 89, 142, 89 (4) 89, 71, 89 Ans: 89, 142, 89
Illustrate and demonstrate that, for correct mass balance, relative amount of two co-existing phases or micro constituents should be as given by lever rule. The lever rule giv
write the structures of the major product (saytzeff elimination) when the following alcohols are dehydrated with hot,concentrated sulphuric acid. 1. 3-methyl-2-butanol 2. 2-pentano
Q. Show the chemical properties of Aluminium? Aluminium has a very high affinity for oxygen; this is reflected in high exothermic heat of formation of Al 2 0 3 (-1676 kJ mol -
On mixing acetone and chloroform, a reduction in total volume occurs. What kind of deviations from ideal behavior for solutions is given in this case and why?
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