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Q. Determine mass of an electron? Ans. Three years later after J.J Thomson discovered the electron, the American scientist Robert Millikan used an oil drop experiment to accu
Write the periods of periodic table have d-block element
I have a very difficult chemistry online assignment due in and I need help.
Preparation of saturated calomel electrode and determination of standard potentials of electrodes such as Cu 1 Cu, Zn 1 Zn, etc. Comparison of the potential values with values from
Q.Waht are Standard Temperature and Pressure? Ans. The agreed set of conditions for comparison of gas volumes is called standard temperature and pressure (abbreviated
Principle of atomic emission spectrometry: The analyte sample is introduced into the centre of the plasma as an aerosol with the help of a nebuliser using argon flow. In the p
Transition metals are substances of the d block that form compounds where electrons from d orbitals are ionized or otherwise accept in bonding. Typical transition metal charac
Test of proteins - Xanthoproteic test Xanthoproteic test : A few proteins give yellow colour along with concentrated nitric acid (formation of yellow stains on fingers when wor
The value of the energy for the first excited state of hydrogen atom will be: (1) - 13.6 ev (2)- 3.40 eV (3) -1.51eV
mechanism of hydroboration of 2-methylpropene
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