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Q. Describe properties and uses of different silicate glasses and also discuss the importance of annealing in the manufacture of glass.
Here''s the equation: NaOH + H2SO4 = Na2SO4 + H2O
external treatment of hard water? Demineralisation of British water
n-propyl acetate evaporates rapidly when exposed to air,but water does not.Explain
what do you know about the dynamic nature of chemical equilibrium?
DEGREE OF HARDNESS: The degree of hardness of water is conveniently expressed in terms of equivalent amount of CaCO 3 . Although hardness of water is never present in th
Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
What are laws of crystallography? How does it help in study of crystal structure
Q. Estimation of synthetic food colours in foods? Food colours in various products need to be isolated, identified and then quantitatively measured for their limits. Estimatio
The statements: (1) In filling a group of orbitals of equal energy, it is energetically preferable to assign electrons to empty orbitals rather than pair them into a particular o
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