Aldehydes, Ketones and Carboxylic Acids  MCQs

MCQs of Aldehydes, Ketones and Carboxylic Acids

Showing 51 to 60 out of 162 Questions
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51.
By which test can acetone and acetaldehyde be identified ?
(a) Molisch test
(b) Bromoform test
(c) Schiff test
(d) Iodoform test
Answer:

Option (c)

52.
Which of the following compounds will not undergo aldol condensation reaction ?
(a) Acetaldehyde
(b) Formaldehyde
(c) Acetone
(d) All of the above
Answer:

Option (b)

53.
What will be obtained when formaldehyde reacts with conc. NaOH ?
(a) Methanol and formic acid
(b) Ethanol and formic acid
(c) Methanol and acetic acid
(d) Methanol and ethanol
Answer:

Option (a)

54.
The IUPAC name of Phthalaldehyde is
(a) Cyclobenzene- 1,2-dicarbaldehyde
(b) Benzene- 1,2-dicarbualdehyde
(c) 3-Bromo benzaldehyde
(d) Benzene- 1,2-di-enal
Answer:

Option (b)

55.
Which of the following is least soluble in water ?
(a) Methanal
(b) Ethanal
(c) Propanal
(d) Butanal
Answer:

Option (d)

56.
In which of the following solvent most of the aldehydes and ketones are fairly soluble ?
(a) Benzene
(b) Ether
(c) Chloroform
(d) All of these
Answer:

Option (d)

57.
Which of the following aldehyde is less soluble in water ?
(a) Formaldehyde
(b) Acetaldehyde
(c) Benzaldehyde
(d) Propanaldehyde
Answer:

Option (c)

58.
The reactivity of ketone is less than aldehyde because _____
(a) two alkyl group
(b) one alkyl group
(c) one hydrogen
(d) C=O bond
Answer:

Option (a)

59.
Formaldehyde →or LiAlH4/H2ONi, Pt or Pd/H2 (?)
(a) Methanal
(b) Ethanal
(c) Methanol
(d) Propanol
Answer:

Option (c)

60.
CH3CHO + 4HI →423 KRed P X + H2O + 2I2 What is product 'X' in above reaction ?
(a) Methane
(b) Ethane
(c) Propane
(d) Butane
Answer:

Option (b)

Showing 51 to 60 out of 162 Questions
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