The equation that represents the water-gas shift reaction is :

If the boiling point of H₂O is 373 K, the boiling point of H₂S will be :

Amongst the following, the form of water with the lowest ionic conductance at 298 K is :

Among the statements (a) - (d), the correct ones are :
(a) Decomposition of hydrogen peroxide gives dioxygen.
(b) Like hydrogen peroxide, compounds, such as KCIO₃, Pb(NO₃)₂ and NaNO₃ when heated liberate dioxygen.
(c) 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.
(d) Hydrogen peroxide is used for the manufacture of sodium perborate.