ICSE Class 9 Answered
how are the following prepared from hydrogen? give the conditions of reaction
a) ammonia b) methyl alcohol c) water gas d) water e) methane
Asked by nathsantanukumar | 23 Jun, 2018, 08:50: PM
Expert Answer
a) Preparation of ammonia:
Nitrogen and hydrogen (Haber process):
Three volumes of hydrogen and one volume of nitrogen react at temperature 450–500°C at a pressure of 200–900 atm in the presence of finely divided iron,
which acts as a catalyst, and the promoter molybdenum.
b) Methyl alcohol:
c) Water gas:
Steam is passed over hot coke (at 1000°C) in a special type of furnace called a converter.
In this step, carbon reacts with water to form carbon monoxide and hydrogen. This mixture is called water gas.
d) Water:
Hydrogen burns with a pop sound in oxygen. It burns with a pale blue flame forming water.
Answered by Varsha | 25 Jun, 2018, 12:57: PM
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