The structure which prevents the bacteria from bursting or collapsing is

The gas liberated at electrode in dry cell is removed in the form a complex.The formula of the complex formed is&nbsp;

Statement I &nbsp;: Cell potential of mercury cell remains constant during its life timeStatement II : Ionic concentration in over all cell reaction remains constant through out its life .

Statement 1 : Mercury cells give a constant voltage throughout its life. Statement 2 : Electrolyte KOH is not involved in the reaction. &nbsp;

Let a fully charged lead-storage battery contains 1.5L of 5M H2SO4. What will be the concentration of H2SO4 in the battery after 2.5A current is drawn from the battery for 6 hour?

Match column I(batteries) with column II(change in oxidation state at cathode)<figure class="table"><table><tbody><tr><td>&nbsp;</td><td>column I</td><td>&nbsp;</td><td>column II</td></tr><tr><td>A</td><td>Fuel cell</td><td>I</td><td>+4 to &nbsp;+2</td></tr><tr><td>B</td><td>Dry cell</td><td>II</td><td>+3 to +4</td></tr><tr><td>C</td><td>Lead storage battery</td><td>III</td><td>&nbsp;0 to - 2</td></tr><tr><td>D</td><td>Ni-Cd cell</td><td>IV</td><td>+4 to +3</td></tr><tr><td>&nbsp;</td><td>&nbsp;</td><td>V</td><td>+3 to +2</td></tr></tbody></table></figure>

The structure which prevents the bacteria from bursting or collapsing is

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