1 - Which of the following will have the highest boiling point?
hexanone
2 - Which of the following reaction is not shown by ketones?
reaction with Fehling solution
3 - The carbon atom of carbonyl group is
sp2 hybridized
4 - Which of the following substances does not give iodoform test?
methyl alcohol
5 - Formalin is _______ % solution of formaldehyde in water
0.4
6 - Which of the following aldehydes shows rapid reaction with sodium nitroprusside?
acetone
7 - Acetone reacts with HCN to form a cyanohydrin. It is an example of
nucleophilic addition
8 - Which of the following compounds will react with Tollens reagent?
CH3-CHO
9 - Which of the following reactions may be assoclated with aldehyde and ketone?
all of the above
10 - Cannizzaros reaction is not given by
acetaldehyde
11 - Which of the following reagents will react with both aldehydes and ketones?
Grignard reagent
12 - Ketones are comparatively less reactive than aldehdye. It is due to
both (a) and (b)
13 - Which of the following do not give aldol condensation reactions?
formaldehyde
14 - Which of the following is not a use of formaldehyde?
in making acetic acid
15 - Formaldehyde and lactose are combined to produce throat lozenges named as
formamint
16 - Which of the following is not a use of acetaldehyde?
formation of throat lozenges
17 - Formula of haloform is
CHX3
18 - Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield
Bakelite
19 - Formalin consists of mixture of formaldehyde methyl alcohol and water. Percentage of water in it is
0.52
20 - Which of the following will not give addition reaction with NaHSO3
CH3-CH2-CHO
21 - On heating aldehydes with Fehlings solution we get a precipitate whose colour is
brick red
22 - Which of the following compounds has the empirical formula CH2O and reacts with sodium hydroxide?
acetic acid
23 - Aldehyde and ketone have same general formula for homologous series
CnH2nO
24 - Oxidation of primary alcohol gives
Aldehyde
25 - Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _____ as promoter
CuCl2
26 - Ncleophilic addition reactions are catalysed
Both a and b
27 - Acetaldehyele cyanohydrin on acid hydrolysis yields
Lactic acid
28 - Acetal on acid hydrolysis generates
Both a & b
29 - Which one exhibits aldol condensation
CH3COCH3
30 - Tetrahydroborate ion is the source of
H-
31 - Which of the following is a symmetrical ketone
acetone
32 - Dry distillation of calcium acetate results in the formation of
acetone
33 - In base catalyzed reaction of carbonyl compound the catalyst
increases the nucleophilic character of reagent
34 - Cannizaros reaction takes place through the transfer of _______ from complex anion.
hydride ion
35 - Iodoform test can be used to distinguish between
all of the above
36 - When - COOH is attached directly to the benzene ring the acid is called
Aromatic
37 - Which one is not a nucleophile?
H3C+
38 - The number of molecules taking part in the rate determining step is called
Order of reaction
39 - What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B]?
Two
40 - What is the order of kinetics in the SN1 mechanism?
First
41 - Which alkyl halide out of the following may follow both SN1 and SN2 mechanism?
(CH3)2 CH - X
42 - When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed?
1 mole of butane
43 - The ether used in Wurtz synthesis is
dry
44 - When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is
propanoic acid
45 - Grignard reagent is reactive due to
the polarity of C-Mg bond
46 - SN2 reaction can be best carried out with
primary alkyl halide
47 - Elimination bimolecular reactions involve
second order kinetics
48 - For which mechanisms the first step involved is the same?
E1 and SN1
49 - The rate of E1 reaction depends upon
the concentration of substrate
50 - Alkyl halides are considered to be very reactive compounds towards nucleophile because
they have an electrophilic carbon & a good leaving group
51 - Which one of the following species is not an electrophile?
NH3
52 - Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent
both a & c
53 - Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone?
tertiary alcohol
54 - Which one of the following molecules does not form alcohol when reacts with Grignard reagent?
carbondioxide
55 - In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms
one
56 - Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield
primary alcohol
57 - The best method of preparation of alkyl halides is a reaction of alcohol with
SOCl2 / Pyridine
58 - Alkyl halides undergo a type of reaction
both a & c
59 - 50% inversion of configuration of molecules take place in a
SN1 - reaction
60 - Which one of the following is termed as benzul alcohol?
C6H5CH2OH
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