Question

Methane gives water gas when heated with steam in presence of

• A. $Cu$
• B. $Ni$
• C. $Zn$
• D. $Al$

Answer 1

The correct option is B $Ni$

Water gas is a fuel gas consisting mainly of carbon monoxide and hydrogen.
When methane reacts with steam at 1273 K in the presence of Nickel catalyst it forms carbon monoxide and dihydrogen gas.
$C{H}_4+H_{2}O\left(g\right)\stackrel{Ni}{⟶}CO+3H_2$

CO formed here is very toxic to human beings because it forms a stable complex with haemoglobin which will reduce oxygen carrying ability of blood.