Steam is passed over red hot carbon and the gaseous products cooled and passed through first alkali, then through ammoniacal cuprous chloride and then through water. What is finally collected?
a) CO2
b) a mixture of hydrocarbons
c) CO + H2
d) H2
Dear Student, Correct answer is d) H2 gas. Explanation: C + H2O -----> CO + H2. CO + NaOH + H2 ------> Na2CO3 + 2H2 . Ammoniacal cuprous chloride absorbs un reacted CO and when passed over water, H2 gets collected. So, what is formed is H2. Regards