Which of the following will be able to react with dilute $HCl$ to give hydrogen gas?

In a galvanic cell,the salt bridge is used to:

What is the molar conductivity of $CH_3-CO_2H$ at infinite dilution?
Given that,
$\wedge_{m}^{o}(CH_3-CO_2)_2Ba = x_1 \ S \ cm^2 \ mol^{-1}$
$\wedge_{m}^{o}(BaCl_2) = x_2 \ S \ cm^2 \ mol^{-1}$
$\wedge_{m}^{o}(HCl) = x_3 \ S \ cm^2 \ mol^{-1}$

What is the approximate standard free energy change per mole of $Zn$ (in $kJ \ mol^{-1}$) for a Daniell cell at $298 \ K$?

When a copper wire is placed in a solution of $AgNO_3$,the solution acquires a blue colour. This is due to the formation of

Which of the following statements is true for the electrochemical $Daniel$ cell?