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Which forms a crystal of Nacl: (1) Nacl molecules (2) Na + and cl - ions (3) Na andcl atoms (4) None of the above Ans: Na + and cl - ions
AS THIS ALKALI METALS HAS LARGE SIZE AND LESS IONISATION ENERGY THEY LOSE THEIR OUTERMOST ELECTRON EASILY. PHOTOELECTRIC EFFECT MEANS EJECTION OF ELECTRONS FROM A METAL WHEN THEY
Dyes Dye is a synthetic and natural colouring matter that is employed in solution to stain materials particularly fabrics. All the coloured substances are not dyes. A coloured
show the nomenclature of polyfunctional group
priming and foaming
Chain, nuclear or skeleton isomerism: This form of isomerism arises because of the difference in the nature of the carbon chain (that is straight or branched) which makes the
Advantage and disadvantage of westron
Q. How can we obtain Boron? Boron is- obtained by the red-action of B 2 O 3 with magnesium or sodium B 2 0 3 is first prepared by strongly katingH 3 B0 3 which is obtained b
Low-grade phosphate rock can be upgraded by flotation processing. In this process the low-grade rock is grounded into a powder and suspended as a water slurry. The addition of smal
what are the demerits of Bohr''s atomic model?
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