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when 100ml of M/10 h2so4 is mixed with 500ml of M/10 naoh then nature or resulting solution and normality of excess of reactant left is
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
Which one pair of atoms or ions will have same configuration: (1) F + ans Ne (2) Li + He - (3) C l - and Ar (4) Na and K Ans: Cl - an
# what are supersaturated vapours
deflection balance
any information of polymers
An electronic transition from 1s orbital of an atom causes: (1) Absorption of energy (2) Release of energy (3) Both release or absorption of energy (4) Unpredictable
Q. Show the solubility of double salts? The solubility of double salts of lanthanides such as 2Ln (N0 3 ).3Mg (N0 3 ) 2 .24H 2 0 and Ln2 (S0 4 ) 3 . Na 2 S0 4 .xH 2 0 increase
How many grams of silica gel and plaster of paris and volume of water is needed to have a preparative TLC?
Q. Illustrate Born-Haber cycle? Boron is always covalent and does not form,B 3+ ions, because' the energy required to remove three electrons is very high. Many simple compo
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