1 |
Structure of carbonyl is |
Tetrahedral
Linear
Octahederal
Trigonal planar
|
2 |
A snake was preserved in a solution and was placed in biology laboratory. The solution is. |
De ionized water
Fehling solution
Formalin
Chloroform
|
3 |
Formalin is |
10% solution of formaldehyde in water
20% solution of formaldehyde in water
40% solution of formaldehyde in water
60% solution of formaldehyde in water
|
4 |
The carbon atom of a carbonyl group is |
sp hybridized
sp<sup>2</sup>hybridized
sp<sup>3</sup>hybridized
none of these
|
5 |
Which one has yellow or orange cyrstalline ppt |
Acetone hydrazone
2, 4 DNPH
Ethanal oxime
Bisulphite addition product
|
6 |
Aldehydes and ketones can be defected by |
2, 4 DNPH test
Tollen's test
Sodium Nitro prusside test
Benedicts solution test
|
7 |
Silver mirror test is given by |
Ethers
Ketones
Acids
Aldehydes
|
8 |
Which reaction is disproportionate reaction |
Aldol Condensation
Cannizzaros's reaction
Haloform reactions
Acid Catalyzed reactions
|
9 |
Which reaction is disproportionate reaction |
Aldol Condensation
Cannizzaros's reaction
Haloform reactions
Acid-catalyzed reactions
|
10 |
Cannizzaro's reaction is given by |
Acetaldehyde
Formaldehyde
Propanal
Propanone
|
11 |
Which is most difficult to be oxidized |
CH<sub>3</sub>CHO
CH<sub>3</sub>COCH<sub>3</sub>
HCHO
C<sub>2</sub>H<sub>5</sub>CHO
|
12 |
Aldehyde react with hydroxyl amine in acidic solution to give |
An oxime
Aldol
Polymer
Acetic acid
|
13 |
Acetone reacts with HCN to form cyanohydrin it is an example of |
Electrophilic addition
Electrophilic substitution
Nucleophilic addition
Nucleophilic subtitution
|
14 |
Which reagent will react with both aldehyde and ketones |
Grignard reagent
Tollen's reagent
Fehling's reagent
Benedict's reagent
|
15 |
Cannizzaro's reaction is not given by |
Formaldehyde
Acetaldehyde
Benzaldehyde
Trithylacetaldehyde
|
16 |
Which of the following compounds will not give Iodoform test on treatment with I2/ NaOH |
Acetaldehyde
Acetone
Butanone
3-Pentanone
|
17 |
Formalin is a 40% solution of |
CH<sub>3</sub>CHO
CH<sub>3</sub>OH
HCHO
CH<sub>3</sub>OCH
|