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Shielding of proton by electrons
Which of the following has the least energy: (1) 2p (2) 3p (3) 2s (4) 4d Ans: 2s
why ionisation energy of aluminium is greater then Ga?
general methods of preparation of ethanol
Q. Explain Molarity and Replacement Reactions? Ans. Frequently in the chemistry lab we are confronted with situations where we are interested in the yield of a certain rea
Write a sort note electronic displacements in a covalent bond ?
Qualitative analysis- Criteria of purity of organic compound The qualitative analysis of an organic compound includes the detection of all the elements that are present in it
need to know common methods of preparing acetone/propanone. Need to include chemical equation for reaction that produces that molecule.
Methylated spirits burner A easy burner can be made from an old boot polish tin. Though it is not necessary, a metal tube can be soldered to the top and a twisted piece of wire
When a result of barium nitrate and a solution of copper(II) sulphate are mixed a chemical reaction produces solid barium sulphate which sinks to the bottom and a solution of coppe
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