A. hydrogen ion
B. hydride ion
C. oxide ion
D. methoxide ion
Correct Answer: hydride ion ✔
Last Updated: February 11, 2021
Related MCQs
- In base catalyzed reaction of carbonyl compound the catalyst__________?
- Which of the following is a symmetrical ketone__________?
- Which one exhibits aldol condensation__________?
- Acetaldehyele cyanohydrin on acid hydrolysis yields__________?
- Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?
- Aldehyde and ketone have same general formula for homologous series__________?
- On heating aldehydes with Fehlings solution we get a precipitate whose colour is__________?
- Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is__________?
- Formula of haloform is__________?
- Formaldehyde and lactose are combined to produce throat lozenges named as__________?
- Which of the following do not give aldol condensation reactions ?
- Which of the following reagents will react with both aldehydes and ketones ?
- Which of the following reactions may be assoclated with aldehyde and ketone ?
- Acetone reacts with HCN to form a cyanohydrin. It is an example of__________?
- Formalin is __________ solution of formaldehyde in water?
- The carbon atom of carbonyl group is__________?
- Which of the following will have the highest boiling point ?
- Iodoform test can be used to distinguish between__________?
- Dry distillation of calcium acetate results in the formation of__________?
- Tetrahydroborate ion is the source of__________?
- Acetal on acid hydrolysis generates__________?
- Ncleophilic addition reactions are catalysed__________?
- Oxidation of primary alcohol gives__________?
- Which of the following compounds has the empirical formula CH2O and reacts with sodium hydroxide ?
- Which of the following will not give addition reaction with NaHSO3__________?
- Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield__________?
- Which of the following is not a use of acetaldehyde ?
- Which of the following is not a use of formaldehyde ?
- Ketones are comparatively less reactive than aldehdye. It is due to__________?
- Cannizzaros reaction is not given by__________?
- Which of the following compounds will react with Tollens reagent ?
- Which of the following substances does not give iodoform test ?
- Which of the following reaction is not shown by ketones ?
- Which of the following aldehydes shows rapid reaction with sodium nitroprusside ?
- Which of the following substances does not give iodoform test ?
- Which of the following reaction is not shown by ketones ?