Methanol is far more toxic than ethanol because in the body it is oxidised to
Correct answer: B. methanoic acid and methanal, which damage the optic nerve
- A. carbon dioxide and water
- B. methanoic acid and methanal, which damage the optic nerve
- C. ethanol
- D. glucose
Explanation
The same enzyme that handles ethanol converts methanol into methanal and then methanoic acid, and these attack the optic nerve and cause acidosis, so blindness or death can follow a small dose. Treatment works by giving ethanol, which competes for the enzyme and lets methanol be excreted unchanged. This is why methylated spirit is deliberately made undrinkable.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Alcohols
Alcohols contain a hydroxyl group attached to a saturated carbon atom and are classified as primary, secondary or tertiary. Their nomenclature, hydrogen bonding, acidity, oxidation, dehydration, reaction with sodium and conversion to haloalkanes are covered, along with the distinction between alcohols and phenols, where the hydroxyl group is attached directly to an aromatic ring.
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Alcohols questions
Industrial ethanol is manufactured from ethene by
Which of the following is a secondary alcohol?
In the iodoform test, a yellow precipitate is given by
Ethylene glycol, used as antifreeze, is classified as
The oxidation of propan-2-ol with acidified potassium dichromate gives
Alcohols with short carbon chains are soluble in water, but solubility falls sharply as the chain lengthens because