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The radius of electron in the first excited state of hydrogen atom is:
(1) a0
(2) 4a0
(3) 2a0
(4) 8ao
Ans: 4a0
How To Develop A New Product The process of developing a new product comprises three phases, namely formulation or recipe development, standardization of processing methods,
why glass electrode is called indicator electrode
Q. What are Native Minerals? These minerals contain the metal in free or elemental state, e.g., copper, silver, gold, platinum and iron. The metals are usually found mixed with
5
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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
Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, w
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