Water gas heated at 450°C and 200 atm pressure in the presence of ZnO+Cr₂O will produce:
Correct answer: B. Methanol
- A. Methanal
- B. Methanol
- C. Carbonic acid
- D. Methane
Explanation
Under the conditions of high temperature (450°C) and high pressure (200 atm) in the presence of a catalyst like ZnO+Cr₂O, water gas (a mixture of carbon monoxide, CO, and hydrogen, H2) could undergo various reactions.Given the conditions provided, one plausible reaction is the synthesis of methanol (CH3OH) from carbon monoxide and hydrogen:CO + 2H2 -> CH3OHMethanol synthesis is a significant industrial process, and it can occur in the presence of suitable catalysts like copper-based catalysts, rather than ZnO+Cr₂O.Therefore, the correct option from the provided list is:(b) Methanol
Last updated
About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
Practise Alcohols and Phenols
535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.