Alcohols and Ethers - Result Question 2
2. The synonym for water gas when used in the production of methanol is
(2019 Main, 10 April I)
(a) natural gas
(b) laughing gas
(c) syn gas
(d) fuel gas
Show Answer
Answer:
Correct Answer: 2. (c)
Solution:
The production of methanol from water gas is as follows:
$ \underset{\substack{\mathrm{ Water ~ gas ~ or ~ syn ~ gas } \\ }}{\left[CO+H _2\right]}+ \ H _2 \xrightarrow[300 \mathrm{atm,} 300^{\circ}C]{ZnO+Cr_2O_3}\underset{\mathrm{Methanol}}{CH _3OH} $
It is an industrial process used for the production of methanol where volume ratio of the reactant gases is maintained as: syn gas : $H _2=2: 1$ and $ZnO-Cr _2 O _3$ act as catalysts Thus, water gas is also called syn gas because it is used for synthesis of methanol.
BETA
