Which of the following is true about chemical cells?
Convert chemical energy to electrical energy
most batteries are chemical cells
i and ii
none
As we learnt
Chemical Cells -
The cells in which electrical energy is produced from the energy change accompanying chemical reactions or a physical process are known as chemical cells.
-
Chemical cells convert chemical energy to electrical energy
Hence, the option number (3) is correct.
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