Aldehyde , Ketones and Carboxylic Acids ONLINE MCQ TEST

ONLINE MCQ TEST

This Quiz is a Simple test for +2 Science group students which contain Questionsin Aldehyde , Ketones and Carboxylic Acids Class XII. Just participate in it and test your skill. ❤❤❤❤❤❤❤

Set- 1       Set -2      Set- 3       Set -4        Set- 5       Set -6         Set-7       Set -8       Set- 9       Set -10

Set -1


Aldehyde , Ketones:

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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   _____________________________________________________________
 Carboxylic Acids

1. Strongest acid among the following is
ClCH2COOH
Cl3CCOOH
CH3COOH
Cl2CHCOOH


2. Weakest acid among the following is
Acetic acid
Phenol
Water
Acetylene


3.                              H2O2 / Fe²⁺
   CH3CH(OH)COOH ------------→ X. The X is
CH3COCOOH
CH3CH2COOH
CH3CHOHCHO
CH2(COOH)2


4. Ethylene dicyanide on hydrolysis (using acid) gives
Oxalic acid
Succinic acid
Adipic acid
Propionic acid


5. The acid that cannot be prepared from Grignard reagent is
Formic acid
Acetic acid
Butyric acid
Benzoic acid


6. The acid which reduces Tollen's reagent is
acetic acid
benzoic acid
formic acid
oxalic acid


7. The compound found as stony deposits in kidneys is
potassium oxalate
oxalic acid
potassium succinate
calcium oxalate


8. The isomerism exhibited by CH3CH2COOH and CH3COOCH3 is
metamerism
functional isomerism
chain isomerism
position isomerism


9. Which of the following compound is optically active?
CH3CH2COOH
HOOC – CH2 – COOH
CH3CH(OH)COOH
Cl2CHCOOH


10. Which of the following is least acidic?
C2H5OH
CH3COOH
C6H5OH
ClCH2COOH


11. Ester formation involves the reaction of
An aldehyde and a ketone
An alcohol with RMgX
Two molecules of an acid with dehydrating agent
An acylhalide with an alcohol


12. Which order of arrangement is correct in terms of the strength of the acid?
CH3CH2COOH > CH3COOH < HCOOH < ClCH2COOH
ClCH2COOH < HCOOH < CH3COOH < CH3CH2COOH
CH3CH2COOH < CH3COOH < HCOOH < ClCH2COOH
HCOOH > CH3CH2COOH < CH3COOH > ClCH2COOH


13. Aspirin is
Salicylic acid
Acetyl salicylic acid
Salicylaldehyde
Methyl salicylate


14. Carboxylic acids are more acidic than phenol and alcohol because of
inter molecular hydrogen bonding
formation of dimers
highly acidic hydrogen
greater resonance stabilisation of their conjugate base


15.                       160^oC 
    H − C = O ----------→ ?   The product is
               |
        HO
CO + H2O
HCOOH
H2 + CO2
HCHO + O2


16. Heating a mixture of sodium acetate and soda lime gives
methane
ethane
acetic acid
benzene


17. The compound which undergoes intramolecular dehydration with P2O5 is
acetic acid
formic acid
propionic acid
Butyric acid


18. When chlorine is passed through acetic acid in presence of red P, it forms
acetyl chloride
Trichloro acetaldehyde
Trichloro acetic acid
Methyl chloride


19. When propanoic acid is treated with aqueous sodium bicarbonatate, CO2 is liberated. The "C" of CO2 comes from
methyl group
carboxylic acid group
methylene group
bicarbonate


20. Which of the following compounds will react with NaHCO3 solution to give sodium salt and CO2?
acetic acid
n-hexanol
phenol
both (a) and (c)


21. The IUPAC name of CH3 – CH2 – CH – COOH is
                                                    |                                                      
                                                    CH3
α-methyl butric acid
3-methyl butanoic acid
2-methyl butanoic acid
Iso pentanoic acid


22. The order of reactivity of carboxylic acid derivatives is
Acid chloride > Ester > Amide > Acid anhydride
Acid chloride > Acid anhydride > Ester > Amide
Acid chloride > Amide > Acid anhydride > Ester
Acid anhydride > Ester >Amide > Acid chloride

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