An industrial method of preparation of methanol is

Options

A. Catalytic reduction of carbon monoxide in presence of `ZnO-Cr_(2)O_(3)`
B. Reacting methane with stem at `900^(@)C` with a nickel catalyst
C. Reducing formaldehlyde with `LiAIH_(4)`
D. Reacting formaldehyde with aqueous sodium hydroxide solution

Explanation

Industrially, syn-gas is used to prepare methanol employing a ZnO catalyst and a `Cr_(2)O_(3)` promoter. Methanol, which is also called wood spirit is used to denature ethanol during its production along with pyridine. The process is
`CO+2H_(2)overset(ZnO-Cr_(2)O_(3))rarr underset("methanol")(CH_(3)OH)`