E° values of some redox couples are given below. On the basis of these values choose the correct option. E° values: Br2/Br- = + 1.90; Ag+/Ag(s) = + 0.80; Cu2+/Cu(s) = + 0.34; I2(s)/I- = + 0.54 V

Question

E° values of some redox couples are given below. On the basis of these values choose the correct option. E° values: Br2/Br- = + 1.90; Ag+/Ag(s) = + 0.80; Cu2+/Cu(s) = + 0.34; I2(s)/I- = + 0.54 V (A) Cu will reduce Br- (B) Cu will reduce Ag (C) Cu will reduce I- (D) Cu will reduce Br2

Tardigrade Admin · Accepted Answer

More positive the value of E° , greater is the tendency of the species to get reduced. On the basis of the given E° values, Br2 is having highest E° value (+1.90) hence, Cu will easily reduce Br2.

Q. $E^{\circ}$ values of some redox couples are given below. On the basis of these values choose the correct option.
$E^{\circ} v a l u es : B r_{2} / B r^{-} = + 1.90$ ; $A g^{+} / A g_{(s)} = + 0.80$ ;
$C u^{2 +} / C u (s) = + 0.34$ ; $I_{2 (s)} / I^{-} = + 0.54 V$

$C u$ will reduce $B r^{-}$

$C u$ will reduce $A g$

$C u$ will reduce $I^{-}$

$C u$ will reduce $B r^{2}$

More positive the value of $E^{\circ}$ , greater is the tendency of the species to get reduced. On the basis of the given $E^{\circ}$ values, $B r_{2}$ is having highest $E^{\circ}$ value $(+ 1.90)$ hence, $C u$ will easily reduce $B r_{2}$ .

Q. E∘ values of some redox couples are given below. On the basis of these values choose the correct option. E∘values:Br2​/Br−=+1.90; Ag+/Ag(s)​=+0.80; Cu2+/Cu(s)=+0.34; I2(s)​/I−=+0.54V

Cu will reduce Br−

Cu will reduce Ag

Cu will reduce I−

Cu will reduce Br2