ONLINE TEST - Carbonyl Compounds - EM

This Quiz is a Simple test for +2 Science group students which contain Questions asked from March - 2006 to Sept - 2016 in Carbonyl Compounds. Just participate in it and test your skill.

1. A Cyanohydrin of a compound X on hydrolysis gives lactic acid. X is
HCHO
CH3CHO
(CH3)2CO
C6H5CH2CHO


2. Aldol is
2-hydroxy butanol
3-hydroxy butanol
3-hydroxy butanal
2-hydroxy butanal
                                                       Distillation
3. Calcium acetate + Calcium benzoate ----------------→?
benzophenone
benzaldehyde
acetophenone
phenyl benzoate


4. Compound which undergoes iodoform test is
1-pentanol
2-pentanone
3-pentanone
pentanal


5. Concentrated solution of sodium acetate on electrolysis gives
ethane
propane
methane
butane


6. Hydrogenation of benzoyl chloride in the presence of Pd and BaSO4 gives
phenol
benzoic acid
benzvl alcohol
benzaldehyde


7. Propanone is / Methyl ketones are (usually) characterised by
Fehling’s solution
Iodoform test
Schiff’s test
Tollen’s reagent


8. Schiff’s reagent gives pink colour with
acetone
acetaldehyde
ethyl alcohol
methyl acetate


9. Tertiary butyl alcohol can be prepared by the treating methyl magnesium iodide with
formaldehyde (HCHO)
acetaldehyde (CH3CHO)
acetone (CH3COCH3)
carbon dioxide (CO2)


10. The compound that does not answer iodoform test is
acetophenone
isopropyl alcohol
2-pentanol
benzophenone


11. The compound that does not reduce Fehling solution is
formaldehyde
acetaldehyde
benzaldehyde
propionaidehyde


12. The compound that does not undergo Cannizzaro reaction is
formaldehyde
acetaldehyde
benzaldehyde
Trimethyl acetaldehyde


13. The compound used in the preparation of the tranquilizer, sulphonal is
acetone
acetophenone
isopropyl alcohol
glycol


14. The compound used in the preparation of triphenyl methane dye is
methanol
phenyl methanol
phenyl methanal
ethanol


15. The formation of a cyanohydrin with a ketone is an example of
electrophilic substitution
nucleophilic addition
nucleophilic substitution
electrophilic addition


16. Which of the following compounds is oxidised to give ethyl methyl ketone?
2-propanol
2-pentanone
1-butanol
2-butanol
                         conc. H2SO4
17. 3CH3COCH3 ---------------→ the product is
Mesitylene
Mesityl oxide
Phorone
Paraldehyde


18. During reduction of aldehydes with hydrazine and C2H5ONa the product formed is
R–CH = N–NH2
R–C ≡ N
R – CO – NH2
R–CH3


19. Formaldehyde polymerises to give
paraldehyde
paraformaldehyde
formalin
formic acid


20. In the reduction of acetaldehyde using LiAlH4 the hydride ion acts as
electrophile
nucleophile
both a) and b)
a free radical


21. Isopropyl alcohol vapours with air over silver catalyst at 520 K give
tert.butyl alcohol
acetaldehyde
acetone
2-propanol


22. The chain isomer of 2-methyl propanal is
2-butanone
butanal
2-methyl propanol
but-3-ene-2-ol


23. When acetaldehyde is heated with Fehling solution, it gives a precipitate of
Cu2O
CuO
CuO + Cu2O
Cu


24. The IUPAC name of CH3 – C = CH – C – CH3 is
                                        |               ║
                                             CH3         O
4-methylpent-3-en-2-one
2-methylpent-3-en-2-one
3-methyl pent-2-en-1-one
None of these


25. Tollen’s reagent is
ammoniacal cuprous chloride
ammoniacal cuprous oxide
ammoniacal silver nitrate
ammoniacal silver chloride


26. Which of the following statement is wrong?
2-pentanone and 3-pentanone are position isomers
aqueous solution of formaldehyde is known as formalin
aldehydes and ketones undergo nucleophilic substitution
aldehydes act as reducing agents


27. Bakelite is a product of reaction between
formaldehyde and NaOH
phenol and methanal
aniline and NaOH
phenol and chloroform


28. During reduction of aldehydes with hydrazine and C2H5ONa, the product formed is
RCH = N – NH2
RC ≡ N
R – CO – NH2
R – CH3


29. Which compound on strong oxidation gives propionic acid?
CH3 – CH – CH3

                 | 

                 OH
CH3 – C – CH3

                ║

                O
           CH3 

                 | 

      CH3 – C – OH

                 |

                 CH3
CH3 CH2 CH2 OH

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