Q. Which of the following does not give yellow precipitate with KINaOH…………
✅ Correct Answer: (C)
Benzaldehyde
Pharmaceutical Organic Chemistry 1 MCQs and Notes
Q. Aromatic aldehyde undergo disproportionation in presence of sodium or potassium hydroxide to give corresponding alcohol and acid. The reaction is known as …………..
✅ Correct Answer: (B)
Cannizzaro reaction
Q. Aldol condensation of acetaldehyde involves the formation of which of the following intermediate?
✅ Correct Answer: (B)
A carbanion
Q. Acetaldehyde reacts with C2H5 MgCl the final product is…………
✅ Correct Answer: (D)
A secondary alcohol
Q. If formaldehyde and KOH heated then we gets,
✅ Correct Answer: (C)
Methyl alcohol
Q. Dimethyl ketones are usually characterized through………….
✅ Correct Answer: (B)
Iodoform test
Q. Haloform test is given by the following substance……………
✅ Correct Answer: (B)
(CH3)2 CO
Q. Which of the following will not give the iodoform test ?
✅ Correct Answer: (C)
Benzophenone
Q. Which of the following will not give iodoform test?
✅ Correct Answer: (D)
3-pentanon
Q. To distinguish between formaldehyde and acetaldehyde, we require……….
✅ Correct Answer: (D)
Caustic soda solution