Which substance is reduced in a dry cell?

What acts as a reducing agent when a dry cell is working?

Which among the following statements is true for a Galvanic cell?

What is the correct order of chemical reactivity with water according to the electrochemical series?

Assertion : If $\lambda^o_{Na^{+}}$ and $\lambda^o_{Cl^{-}}$ are molar limiting conductivity of sodium and chloride ions respectively,then the limiting molar conductivity for sodium chloride is given by the equation :
$\Lambda^o_{NaCl} = \lambda^o_{Na^{+}} + \lambda^o_{Cl^{-}}$
Reason : This is according to Kohlrausch law of independent migration of ions.

In animals,nerve signals are generated due to the movement of which of the following?