Standard reduction potentials of some species P, Q , R , S , T , U , W are -2.90 V ,+0.34 V, +1.20 V ,-0.76 V ,-1.35 V ,+0.11 V ,-0.40 V, respectively. How many of these can oxidize hydrogen gas?

Question

Standard reduction potentials of some species P, Q , R , S , T , U , W are -2.90 V ,+0.34 V, +1.20 V ,-0.76 V ,-1.35 V ,+0.11 V ,-0.40 V, respectively. How many of these can oxidize hydrogen gas? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

The standard reduction potential of hydrogen electrode is zero. Hence, any species having electrode potential greater than zero can oxidize hydrogen gas. Thus, Q, R and U can oxidize hydrogen gas.

Q. Standard reduction potentials of some species $P$ , $Q, R, S, T, U, W$ are $- 2.90 V, + 0.34 V, + 1.20 V, - 0.76 V, - 1.35 V, + 0.11 V, - 0.40 V$ , respectively. How many of these can oxidize hydrogen gas?

The standard reduction potential of hydrogen electrode is zero. Hence, any species having electrode potential greater than zero can oxidize hydrogen gas. Thus, $Q, R$ and $U$ can oxidize hydrogen gas.

Q. Standard reduction potentials of some species P, Q,R,S,T,U,W are −2.90V,+0.34V,+1.20V,−0.76V,−1.35V,+0.11V,−0.40V, respectively. How many of these can oxidize hydrogen gas?

The standard reduction potential of hydrogen electrode is zero. Hence, any species having electrode potential greater than zero can oxidize hydrogen gas. Thus, Q,R and U can oxidize hydrogen gas.

Q. Standard reduction potentials of some species $P$ , $Q, R, S, T, U, W$ are $- 2.90 V, + 0.34 V, + 1.20 V, - 0.76 V, - 1.35 V, + 0.11 V, - 0.40 V$ , respectively. How many of these can oxidize hydrogen gas?

The standard reduction potential of hydrogen electrode is zero. Hence, any species having electrode potential greater than zero can oxidize hydrogen gas. Thus, $Q, R$ and $U$ can oxidize hydrogen gas.