The size of the metal colloids obtained by Bredig's arc method can be controlled by adjusting:
The voltage of the electric arc
The concentration of the metal salt
The temperature of the reaction
The pH of the medium
The size of the metal colloids prepared by Bredig's arc method can be controlled by adjusting the concentration of the metal salt in the medium.
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5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be 3.820C. If Na2SO4 is 81.5% ionised, the value of x (K

A capacitor is made of two square plates each of side 'a' making a very small angle
A solution of m-chloroaniline, m-chlorophenol and m-chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of NaHCO3 to give fraction A. The leftover organic phase was extracted with d