Question

When carbon combines with hydrogen in the presence of nickel, ———(methane, ammonia) is formed.

Answer 1

Definition of Methane

• Methane is a hydrocarbon with the chemical formula ${\mathrm{CH}}_4$
• It is the primary component of natural gas.
• Methane is an odorless, colorless, and flammable gas.
• It can be formed by the decay of natural materials
• Hydrogen reacts with carbon at the temperature of 520⁰C and above in the presence of nickel or cobalt to form hydrocarbons

$2{\mathrm{H}}_2\left(\mathrm{g}\right)+\mathrm{C}\left(\mathrm{s}\right)\underset{\mathrm{Ni}/\mathrm{Co}}{\overset{{520}^0\mathrm{C}}{\to }}{\mathrm{CH}}_4\left(\mathrm{g}\right)$

Conclusion: When carbon combines with hydrogen in the presence of nickel, methane is formed.