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The energy of an electron in orbit of hydrogen atom is : (1) 13.6/n 4 x eV (2) 13.6/n 3 xeV (3) 13.6/n 2 xeV (4)13.6/nx eV Ans:
what is the function of the charcoal in the purification of the 4-nitroanine 2.why is it not possible to obtain 2-and 4-nitroaniline by direct nitration of aniline (phenylamine)
Q. Compounds of Group 16 Elements? We will now discuss some compounds like the hydrides, halides and oxides of the Group 16 elements. All elements of this group form simple
Test of proteins - Biuret test (i) Biuret test : By adding a dilute solution of copper sulphate to alkaline solution of protein, a violet colour is made. This test is because o
What is dielectric strength Dielectric strength- It's the maximum voltage/field gradient (voltage per unit thickness) which the dielectric can withstand without failure/brea
what is the unabbreviated electron configuration of lanthanum
Liquid-liquid extraction is used to separate acetone and MIBK. A mixture of acetone and MIBK is fed to a mixing tank at a rate of 100 kg/min. Pure water is also fed to the tank and
Q. Explain about Electron-Dot Structures? Write an electron-dot structure for a impartial atom of arsenic an element used in semiconductor materials because of its electron con
Explain the Gibbs Phase Rule for Multicomponent Systems? The Gibbs phase rule for a pure substance was written F = 3 - P. We now consider a system of more than one substance an
In chemistry, a steady state is a state in which all state variables are constant in spite of ongoing processes that strive to change them. For an entire system to be at steady s
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