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describe and explain the charater tables of water and amoniaa molecule
how can we refine metal by zone refining process
To increase the pressure so that boiling point of water increases and heat provided goes only for cooking food not for boiling water
I would like to know why you stop heating the sulphuric acid before placing in the copper oxide in making copper sulphate crystals
Aufbau principle is obeyed in which of the following electronic configurations: (1) 1s 2 2s 2 2p 6 (2) 1s 2 3p 6 3s 2 (3) 1s 2 3s 2 3p 6
Six protons are found in the nucleus of : (1) Boron (2) Lithium (3) Carbon (4 )Helium Ans: Carbon
merits
Number of unpaired electrons in inert gas is: (1) Zero (2) 8 (3) 4 (4) 18 Ans: Zero
what is the working principle of polarography
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Ans) There is a formula for this i.e [ (n 2- n 1 +1)
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