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Two element have electronegativity of 1.2 and 3.0. Bond formed between them would be: (1) Ionic (2) Polar covalent ( 3) Co-ordinate (4) Metallic A ns: Ionic
the periodic table
Q. What is softening of water? Describe deionization method of water softening with diagram. Ans. Softening of water: The process of removing the hardness causing salts from
Calculate equivalent weight of 99.22% purity of hexamethylene diisocyanate (HDI)?
How many spyro moleculesr are there Ans) n numbers
given the mobility of hydrogen ion and cl to be 0.0000003623 and 0.0000000791 respectively. calculate the transference number of proton in the 0.001M solution of hydrocholric acid
advantages
What is the advantage of using a flame photometer instrument designed to operate with an internal standard ?
Is there any difference b/w solution and mixture?
The number of appositively charged ions surrounded a certain ion in an ionic crystal lattice is known as co- ordination number.
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