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Electrovalent bond formation depends on: (1) Ionization energy (2) Electron affinity (3) Lattice energy (4) All the three above Ans: All the three above
Which type of compounds show high melting and boiling points: (1) Electrovalent compounds (2) Covalent compounds (3) Coordinate compounds (4) All the three types of co
What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure? The thermodynamic data is: •?H°f for NH3 (aq) = -
What is happen whenever H2SO4+HNO3 adding to the phenol.give the reaction Ans) Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
what are comis salts .
The diffraction of x-ray by a crystal gives 1st order ref at 14•12'' if lattice dist is 3.14 A• wht is the wavelength of x-ray
what is wurtz reaction?
how can you prepare 20%(v:v),150ml ethanol solution
A student wishes to prepare 250ml of a 0.20mol/L solution of oxalic acid (COOH)2.2H2O. a) Calculate the amount (no.of moles) of oxalic acid required. b) Calculate the mass of oxali
What is pH scale?
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