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The position and velocity of a small particle like electron cannot be simultaneously determined." This statement is:
(1) Heisenberg uncertainty principle
(2) Principle of de Broglie's wave nature of electron
(3) Pauli's exclusion principle
(4) Aufbau's principle
Ans: Heisenberg uncertainty principle
Q. What are the diffrent forms of energy? Ans: Kinetic energy is energy of motion. Gas molecules of a given substance move much more rapidly than do the molecules in the soli
The orbital angular momentum of an electron in 2s -orbital is: (1) 1/2 h/ 2Π (2) h/ 2Π (3) √2 h/ 2 Π (4) Zero Ans
The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
what are the applications of coulumetry ?
Q. Explain Distillation in purification of metals? Metals with low boiling points, such as cadmium, zinc and mercury will be purified by distillation. The distillation is gener
why must the mass relative of atom refer to atomic mass of C
difference between organic & inorganic colloides ?
importance of a heat exchanger in a chemical process and mention the different types of heat exchangers
how many methods to remove color impurities in chemical compounds?
i am not able to understand difference between emphasising and reflexive pronoun
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