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The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
Nomenclature of simple aromatic compounds Aromatic compounds are those that consist of one or more benzene rings in them. An aromatic substance has two major types: (1) Nucl
why is the isoelectric point of all amino acids not at ph 7 and what has the ionisable side chains got to do with it?
What is the purpose of zone refining? In a binary phase diagram (pressure omitted), what is the maximum number of phases which can coexist for at least one degree of freedom?
The number of electrons in c l - ion is: (1) 19 (2) 20 (3) 18 (4) 35 Ans: 18
Q. Storehouse of minerals? in addition to the earth's crust, oceans also provide a huge storehouse of minerals in which the metals occur primarily as soluble sulphates and hali
The compound in which cation is isoelectronic with anion is : (1) NaCl (2) CsF (3) NaI (4) K 2 S Ans: K 2 S
An unknown amount of copper, at 95 degrees C,, is placed in 100 g of water at 20 degrees C. It reaches temperature equilibrium at 60 degrees C. What is the mass of the copper?
Be 2+ is isoelectronic with: (1) Mg 2+ (2) Na + (3) Li + (4) H + Ans: Li +
Factors affecting TLC
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