Chemistry

Problem

The EMF of a concentration cell consisting of two zinc electrodes, one dipping into

\frac{\text{M}}{4}

sol. of zinc sulphate & the other into

\frac{\text{M}}{16}

sol. of the same salt at

25^{\circ}\text{C}

is (a) 0.0125 V (b) 0.0250 V (c) 0.0178 V (d) 0.0356 V