Assignment Instructions/ Description
Image transcription text22-Ozonolysis of alkenes yields
n- Alcohol
o- carboxylic acid
d- alkane
b-ketones if one of the unsaturated carbon atoms is disubstituted
23-Aldehyde C-O is more polarized than ketone C O because
1-As in carbocations, more alkyl groups stabilize + character
b-Ketone has more alkyl groups, stabilizing the C-O carbon inductively
c- due to a and b
d- none of the above
24-Aldehydes and unhindered ketones react with HCN to form
a-Cyanohydrine b- alcohol
c- alkyne
d- alkene
25-addition of a Grignard reagent to formaldehyde followed by H3O* gives
a- 10 alcohol b- 2ndry alcohol c- tertiary alcohol d-Aldhyde
26-aromatic amines react with the C-O group of aldehydes and ketones to give a-
amino aldhyde
b-imines (Schiff bases) c- carboncation d- alcohol
27-Which of the following methods cannot produce aldehydes?
a) Oxidation of primary alcohols
b) Dehydrogenation of secondary alcohols
c) Ozonolysis of alkenes
d) Hydration of ethyne with acid
28-Which of the following compounds can be prepared from the reduction of
benzaldehyde by Wolf-Kishner reaction?
a) Methanal b) Acetone c) Butanone
d) Toluene
29-Which is the main product of the Wittig reaction?
1) NaOH, H20
Ph
CH3
2) HaO+
a-
Ph
H
Ph
COCH3
OH
OH O
2. PhCHCH2CCH3 b- (CH3)2CCH2CCH3 c H
COCH3 d- H
H
30-Cannizaro reaction is the redox reaction for
b- Two molecules of alcohol
b-Two molecules of aldehyde
c-One mole of ketone and one mole of aldehyde d-Two molecules of imines... Show more