Q.1
C2H5CHO and (CH3)2CO can be distinguished by testing with
  • a) Phenyl hydrazine
  • b) Hydroxylamine
  • c) Fehling solution
  • d) Sodium bisulphite
Q.2
Which will form two oximes with NH2OH?
  • a) H2C=O
  • b) CH3COCH3
  • c) CH3CH2COCH2CH3
  • d) CH3CH2COCH3
Q.3
ion Q93) On vigorous oxidation by permanganate solution gives .... [ AIEEE 2002]
ch-28_que_no-93_img_no1.png
  • a)
    ch-28_qn-93choice_img_no1.png
  • b)
    ch-28_qn-93choice_img_no2.png
  • c)
    ch-28_qn-93choice_img_no3.png
  • d)
    ch-28_qn-93choice_img_no4.png
Q.4
ion Q94) Muscone ( an explosive perfume secreted by musk deer) has the structure Its IUPAC name is
ch-28_que_no-94_img_no1.png
  • a) methyl cyclopentadecan-3-one
  • b) 3-methyl cyclopentadecanone
  • c) 3-methyl cyclohexdecan-3-one
  • d) 3-methyl cyclotetradecanone
Q.5
Clemmensen's reduction of ketones is carried out in presence of
  • a) Zn-Hg with conc. HCl
  • b) LiAlH4 in water
  • c) Glycol with KNO
  • d) H2with Pd catalyst
Q.6
When sodium formate is heated it gives
  • a) water
  • b) carbon dioxide
  • c) sodium hydroxide
  • d) hydrogen
Q.7
On heating acetaldehyde with ammonical silver nitrate solution, we get
  • a) HCHO
  • b) Silver acetate
  • c) Silver mirror
  • d) CH3OH
Q.8
Which of the following does not react with phenyl hydrazine?
  • a) Acetophenone
  • b) Acetone
  • c) Ethanol
  • d) Ethanal
Q.9
Formula of diacetone alcohol is
  • a) (CH3)2C(OH)CH2COCH3
  • b) (CH3)2CHOHCH2COCH3
  • c) CH3CHOHCH2COCH3
  • d) none of the above
Q.10
Which of the following is hypnotic?
  • a) Acetaldehyde
  • b) Metaldehyde
  • c) Paraldehyde
  • d) None
Q.11
han One Correct Answer Q101) Among the following compounds, which will react with acetone to give a product containing    >C=N-  ?
  • a) C6H5NH2
  • b) (CH3)3N
  • c) C6H5NHC6
  • d) C6NHNH2
Q.12
Which compounds will not reduce Fehling's solution?
  • a) Benzaldehyde
  • b) Ethanal
  • c) Methanal
  • d) Trichloroethanal
Q.13
Chloral belongs to the class of
  • a) alcohols
  • b) aldehydes
  • c) amides
  • d) ketones
Q.14
3-Hydroxybutanal is formed when (X) reacts with (Y) in dilute (Z) solution. What are X, Y and Z
  • a) CH3CHO, (CH3)2CO, NaOH
  • b) CH2CHO, CH3CHO, NaCl
  • c) (CH3)2CO, (CH3)2CO, HCl
  • d) CH3CHO, CH3CHO, NaOH
Q.15
Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid? [ AIEEE 2004]
  • a) Phenol
  • b) Benzaldehyde
  • c) Butanol
  • d) Benzoic acid
Q.16
han One Correct Answer Q106) Which compound(s) has have active methylene group?
  • a) CH3-CH2-NO2
    ch-28_qn-106choice_img_no2.png
  • b)
    ch-28_qn-106choice_img_no3.png
  • c)
    ch-28_qn-106choice_img_no4.png
  • d)
Q.17
An organic compound X on treatment with acidified K2Cr2O7 gives compound Y which reacts with I2 and sodium carbonate to form triiodomethane. The compound X can be ... ..
  • a) CH3CH(OH)CH3
  • b) CH3CH2CHO
  • c) CH3CHO
  • d) CH3COCH3
Q.18
The best oxidising agent for oxidation of CH3CH=CHCHO to CH3CH=CH-COOH
  • a) Acidified KMnO4
  • b) Alkaline KMnO4
  • c) Acidified K2Cr2O7
  • d) Ag(NH3)2+
Q.19
Which of the following compounds does not react with NaHSO3
  • a) HCHO
  • b) Acetone
  • c) Acetophenone
  • d) Acetaldehyde
Q.20
Acetaldehyde is produced from the following in the presence of aqueous KMnO4 solution ... ..[ Punjab CET 1998]
  • a) Ethyl chloride
  • b) Methyl alcohol
  • c) Ethane
  • d) Ethyl alcohol
Q.21
Alkaline hydrolysis of 1,1-dichloroalkane yields
  • a) alkyne
  • b) alkanol
  • c) alkanal
  • d) alkanone
Q.22
Schiff's reagent is
  • a) magenta solution decolourised with sulphurous acid
  • b) magenta solution decolourised with chlorine
  • c) ammoniacal cobalt chloride solution
  • d) ammoniacal manganese sulphate solution
Q.23
han One Correct Answer Q113) Which is/are not mixed ketone(s)?
  • a) Butan-2-one
  • b) Propan-2-one
  • c) Pentan-3-one
  • d) Pentan-2-one
Q.24
Collin's reagent causes the conversion
  • a) >CO → >CHOH
  • b) >CHO → -COOH
  • c) >CHOH → >CO
  • d) >CHOH → -COOH
Q.25
han One Correct Answer Q115) Which of the following will undergo aldol condensation?
  • a) Acetaldehyde
  • b) Benzaldehyde
  • c) Propanaldehyde
  • d) Trideutero acetaldehyde
Q.26
on Q116) This reaction given is ... ... [ DEC 2002]
ch-28_que_no-116_img_no1.png
  • a) Cannizzaro reaction
  • b) Aldol candensation
  • c) Knoevengel reaction
  • d) Non of these
Q.27
Assertion: Chloral hydrate CCl3CH(OH)2 is a stable molecule. Reason: An organic compound having two -OH groups on one carbon atom is unstable
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
  • c) Assertion is true but, Reason is false
  • d) Assertion is false but, Reason is true
Q.28
Paraldehyde is a trimer of
  • a) Acetaldehyde
  • b) Benzaldehyde
  • c) Propionaldehyde
  • d) Formaldehyde
Q.29
Calcium propanoate on refluxing yields
  • a) propanol - 2
  • b) pentanone-2
  • c) propanone-2
  • d) pentanone-3
Q.30
Aldehyde used in the manufacture of perfumes is
  • a) HCHO
  • b) C6H5CHO
  • c) CCL3CHO
  • d) CH3CHO
0 h : 0 m : 1 s