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In which one of the following pairs of experimental observations and phenomenon does the experimental observation correctly account for phenomenon:
(1) X-ray spectra Charge on the nucleus
(2)α -particle scattering Quantized electron orbit
(3)Emission spectra The quantization of energy
(4)The photoelectric effect The nuclear atom
Ans: (c)Emission spectra The quantization of energy
When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is
Q. Effect of various additives on the stability of egg foam? recognize the different stages in the foam formation, explain the effect of various factors in foam format
advantages of pseduo order reaction??
When β -particles are sent through a tin metal foil, most of them go straight through the foil as : (1)β -particles are much heavier than electrons (2) β -particles are po
Calculate the free energy change of following reaction at298 kelvin H2+I2=2HI if the enthalpy change is 51.8816kj and the entropy change is 166.15j is this reaction thermodyanamica
variation of cnductivigy with temperature
1. why YbS and YbI2 are semiconducting solids but LaS and LaI2 show metallic character. 2. Why is aqueous solution of Eu2+ thermodynamically less susceptible to oxidation than any
A covalent bond between two atoms is formed by which of the following: (1) Electron nuclear attraction (2) Electron sharing (3) Electron transfer (
how does salt bridge works??
calculate the concentration of the Naoh solution you have prepared on the basis of the measured mass of the pellets used in the solution volume
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