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Mdcat-past-papers Quiz

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4261. Which of the following will give iodoform reaction on treatment with Na₂CO₃ and I₂?



4262. When Aldehyde reacts with 50% NaOH, this reaction is called as:



4263. The hydrate percentage is maximum for:



4264. The carbonyl group of aldehyde and ketone are reduced to -CH₂ using reagent:



4265. 50% NaOH is used in which reaction:



4266. Cannizzaro's reaction is given by:



4267. Compound A + I₂ + Na₂CO₃ → Compound B + RCOONa + NaI + H₂O. Identify compound B:



4268. Which of the following will give a positive test with Tollen's reagent?



4269. Tollen's reagent is ammonical silver nitrate solution, which identifies a functional group X with observation O. Identify X and O:



4270. The appearance of silver mirror in Tollen's test indicates the presence of which of the following?



4271. The blue color of Fehling's solution changes to red when warmed with an aldehyde due to the formation of:



4272. Reaction of HCN with formaldehyde is a/an:



4273. Which of the following is formed when formaldehyde is treated with oxidizing mixture (H₂SO₄ + K₂Cr₂O₇)?



4274. Aldehydes cannot be easily oxidized by:



4275. Aldehydes do not give which identification test:



4276. Oxidation of propanol in the presence of K₂Cr₂O₇/H₂SO₄ produces:



4277. Silver Mirror with Tollen's Reagent is formed by:



4278. Ketones do not give ----- reactions.



4279. Sodium nitroprusside test is shown by:



4280. Ketones undergo reduction to form: