Questions in electrochemistry

Select	Question
	A depolarizer used in dry cell batteries is
	When lead storage battery is charged
	In Galvanic cell, the salt bridge is used to
	Saturated solution of $KN{{O}_{3}}$ is used to make ‘salt-bridge’ because
	Which of the following statements about the spontaneous reaction occurring in a Galvanic cell is always true
	In the cell $Zn\|Z{{n}^{2+}}\|\|C{{u}^{2+}}\|Cu$, the negative electrode is
	Following is the concentration cell reversible to anion$\underset{1\text{ bar}}{\mathop{Pt(C{{l}_{2}})}}\,\|C{{l}^{-}}({{C}_{1}})\|\|C{{l}^{-}}({{C}_{2}})\|\underset{1\text{ bar}}{\mathop{Pt(C{{l}_{2}}}}\,)$. Cell reaction is spontaneous if
	Which of the following reactions occurs at the cathode of a common dry cell
	In $Cu – Zn$ cell
	The charge over anode in a Galvanic cell is