Which of the following aldehydes shows rapid reaction with sodium nitroprusside
Correct answer: A. formaldehyde
- A. formaldehyde
- B. benzaldehyde
- C. acetaldehyde
- D. acetone
Explanation
Formaldehyde, the smallest and most reactive aldehyde, readily shakes hands with sodium nitroprusside in a swift and vibrant reaction. This quick dance yields a deep red colored complex almost instantly, revealing formaldehyde's presence without delay.CH₂O + Na₂[Fe(CN)₅NO] + 2NaOH → Na₄[Fe(CN)₅C=NOH] + H₂O (deep purple complex)
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
Practise Aldehydes and Ketones
679 free Aldehydes and Ketones 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 Aldehydes and Ketones questions
Which of the following substances produce acetaldehyde on dry distillation?
Trivial name of the following compound is
During the hydrolysis of an acetal in an acidic environment, the acetal is converted back into
Consider the following Reaction CH3COOH +4[O] in presence of K2Cr2O7.conc.H2SO4of the following, which product is formed?
Which of the following compounds will react with Tollen's reagent?
Which of the following reactions may be associated with aldehyde and ketone?