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a metal forms 2 oxides. the higher oxide has 80% metal. 0.72g of lower oxide gave 0.8g of higher oxide when oxidised. show that law of multiple proportion is valid?
The postulate of Bohr theory that electrons jump from one orbit to the other, rather than flow is according to : (1) The quantisation concept (2) The wave nature of elect
Typical conductometric titration curve for a weak aci and a strong base
A sample of gas occupies 10l under a pressure of 1atm. what will be its volume if the pressure is increased to 2atm ? assuming that temperature of the gas sample does not change
Q. Scientific Notation and Dimensional Analysis? Very small and extremely large numbers can be compared more easily when they are converted into a form called scientific notati
Which one of the following is not the characteristic of Planck's quantum theory of radiation: (1)The energy is not absorbed or emitted in whole number or multiple of quantum
Uncertainty in position of a 0.25 g particle is 10 -5 . Uncertainty of velocity ( h = 6.6 x 10 -34 Js) is: (1) 1.2 x 10 34 (2) 2.1 x 10 -29 (3) 1.6 x 1
Because Nucleus is composed of protons and neutrons..
What is Allotropy If the change in structure is reversible then the polymorphism is called as 'allotropy'.Allotropy (Gr. allos, other, and tropos, manner) is a behavior exhibi
A number of ionic compounds e.g.Agcl , caF 2 BaSo 4 are insoluble in water. This is because: (1) Ionic compounds do not dissolve in water (2) Water has a high dielectri
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