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Chemistry MCQ Question - Aldehydes and Ketones

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1. Which of the following substance produce acetaldehyde on dry distillation?




2. Which of the following will have the highest boiling point?




3. Which of the following reaction is not shown by ketones?




4. The carbon atom of carbonyl group is




5. Which of the following substances does not give iodoform test?




6. Formalin is _______ % solution of formaldehyde in water




7. Which of the following aldehydes shows rapid reaction with sodium nitroprusside?




8. Acetone reacts with HCN to form a cyanohydrin. It is an example of




9. Which of the following compounds will react with Tollens reagent?




10. Which of the following reactions may be assoclated with aldehyde and ketone?




11. Cannizzaros reaction is not given by




12. Which of the following reagents will react with both aldehydes and ketones?




13. Ketones are comparatively less reactive than aldehdye. It is due to




14. Which of the following do not give aldol condensation reactions?




15. Which of the following is not a use of formaldehyde?




16. Formaldehyde and lactose are combined to produce throat lozenges named as




17. Which of the following is not a use of acetaldehyde?




18. Formula of haloform is




19. Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield




20. Formalin consists of mixture of formaldehyde methyl alcohol and water. Percentage of water in it is




21. Which of the following will not give addition reaction with NaHSO3




22. On heating aldehydes with Fehlings solution we get a precipitate whose colour is




23. Which of the following compounds has the empirical formula CH2O and reacts with sodium hydroxide?




24. Aldehyde and ketone have same general formula for homologous series




25. Oxidation of primary alcohol gives




26. Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _____ as promoter




27. Ncleophilic addition reactions are catalysed




28. Acetaldehyele cyanohydrin on acid hydrolysis yields




29. Acetal on acid hydrolysis generates




30. Which one exhibits aldol condensation




31. For aldol condensation the conditions necessary




32. Aldehydes are reduced to




33. Tetrahydroborate ion is the source of




34. Which of the following is a symmetrical ketone




35. Dry distillation of calcium acetate results in the formation of




36. In base catalyzed reaction of carbonyl compound the catalyst




37. Cannizaros reaction takes place through the transfer of _______ from complex anion.




38. Iodoform test can be used to distinguish between




39. The fertility of the soil is improved by




40. Which of the following is incorrect statement about nitrogen importance?




41. The fertilizers which provide single nutrient from NPK are called ______ fertilizer.




42. Which of the following is macronutrient?




43. Addition of urea to the soil is _________ reaction.




44. Which of the following is the most suitable catalyst for ammonia synthesis?




45. The cooling of molten urea by air in the tower is called




46. Which of the following fertilizers is not useful for paddy rice?




47. DAP (Diammonium hydrogen phosphate) contains _________ plant nutrients.




48. Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes?




49. Calcarious material includes




50. Argillaceous material does not include