In Bredig's arc method, the metal electrode is usually made of:
Solid metal
Metal oxide
Metal salt
Metal sulfide
In Bredig's arc method, the metal electrode is usually made of solid metal, and it serves as the source of the metal particles that are vaporized and form the colloidal solution.
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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