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has gold a chemical proporties show/
Why was covalent compounds are insoluble in water and ionic compounds soluble in water? Ans) When ionic bonds form, one atom becomes positively charged, while the other becomes ne
Q. Distribution coefficients of the salts? The distribution coefficients of the salts of lanthanide elements between organic and water solvents are slightly different. Thus, th
what is ionisation energy
We are asked to design a qualitative analysis scheme that can be used to determine which cations are present in a solution containing only four of the following cations: Pb2+, Ag+,
The energy of an electron in the first Bohr orbit of H atom is-13.6eV . The possible energy value(s) of the excited state(s) for electrons in Bohr orbits to hydrogen is(are):
A water solution have 64% Na 2 S 2 O 2 together with 1.0% soluble impurity. Upon cooling to 5°C, Na 2 S 2 O 2 ·5H 2 O. crystallizes out. The solubility of this hydrate is 1.35
Q. What are the requirements of drinking water? Explain various methods used for the sterilization of water for municipal supply. ANS. Requirements of drinking water: The e
Q. A sample of water analysis was found to contain temporary magnesium hardness 25 mg/L. Permanent magnesium chloride hardness 15 mg/L and permanent calcium sulphate hardness 20
Why liquids rise in the cappilary tube ? Explain.
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