NMDCAT Practice test + Notes Chapter #9

MCQ-41
aldehyde to alcohol
Which of the following reagent is used for the above reaction
A. Hâ‚‚/Ni
B. K2Cr2O7/H2SO4
C. NaBH4/H3O+
D. I2/NaOH

Answer: C

MCQ-42
Cannizzaro’s reaction is given by
A. Formaldehyde
B. Benzaldehyde
C. Trimethylacetaldehyde
D. All of these

Answer: D

MCQ-43
Formaldehyde reacts with HCN (NaCN+HCl) to give a compound
A. acetaldehyde cyanohydrin B. acetone cyanohydrin

C.formaldehyde cyanohydrin D. CH3COCN

Answer: C

MCQ-44
Iodoform test will not be positive with
A. diethyl ketone
B. Ethyl alcohol
C.2-butanone
D. Acetaldehyde

Answer: A

MCQ-45
The reaction of aldehydes and ketones with ammonia derivatives to form compounds containing the group Ammonia derivatives and water is known as the _______reaction.
A. Nucleophilic addition
B. Electrophilic addition
C. Nucleophilic substitution
D. Addition Elimination

Answer: D

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