Q.1
ion Q92) The major product formed in the following reaction [AIIMS 2005]
ch-26_que_no-92_img_no1.png
  • a)
    ch-26_qn-92choice_img_no1.png
  • b)
    ch-26_qn-92choice_img_no2.png
  • c)
    ch-26_qn-92choice_img_no3.png
  • d)
    ch-26_qn-92choice_img_no4.png
Q.2
ion Q93) The major product obtained on the monobromination ( with Br2/FeBr3) of the following compound A is [ AIIMS 2006]
ch-26_que_no-93_img_no1.png
  • a)
    ch-26_qn-93choice_img_no1.png
  • b)
    ch-26_qn-93choice_img_no2.png
  • c)
    ch-26_qn-93choice_img_no3.png
  • d)
    ch-26_qn-93choice_img_no4.png
Q.3
Which of the following compounds has the highest boiling point? [ AIIMS 2006]
  • a) CH3CH2CH2Cl
  • b) CH3CH2CH2CH2Cl
  • c) CH3CH(CH3)CH2Cl
  • d) (CH3)3CCl
Q.4
The major product formed in the following reaction CH3CH(Cl)CH2-CH2OH + aq.KOH → is : [ AIIMS 2006]
  • a) CH3CH = CHCH2OH
    ch-26_qn-95choice_img_no3.png
  • b) CH2 = CHCH2OH
  • c)
  • d) CH3CH(OH)CH2CH2OH
Q.5
CH3OC2H5 and (CH3)3C-OCH3 are treated with Hydroiodic acid. The fragments obtained after reactions are [ AIIMS 2007]
  • a) CH3I + HOC2H5 ; (CH3)3Cl+HOCH3
  • b) CHO + C2C2H5I ; (CH3)3Cl+HOCH3
  • c) CHO + C2C2H5I ; (CH3)3COH + CH3I
  • d) CH3I + HOC2H5 ; CH3I + (CH3)3COH
Q.6
In which of the following reactions the product obtained is t-butyl methyl ether? [ AIIMS 2008]
  • a)
    ch-26_qn-97choice_img_no1.png
  • b)
    ch-26_qn-97choice_img_no2.png
  • c)
    ch-26_qn-97choice_img_no3.png
  • d)
    ch-26_qn-97choice_img_no4.png
Q.7
Which of the following is primary halide? [ AIIMS 2008]
  • a) iso-propyl iodide
  • b) secondary butyl iodide
  • c) tertiary butyl bromide
  • d) Neohexyl chloride
Q.8
An organic compound X on treatment with pyridinium chlorochromate in dichloromethane gives compound Y. Compound Y reacts with I2 and alkali to form triiodomethane. The compound X is [ AIIMS 2008]
  • a) C2H5OH
  • b) CH3CHO
  • c) CH3COCH3
  • d) CH3COOH
Q.9
Maximum enol content is in [AIIMS 2008]
  • a)
    ch-26_qn-100choice_img_no1.png
  • b)
    ch-26_qn-100choice_img_no2.png
  • c)
    ch-26_qn-100choice_img_no3.png
  • d)
    ch-26_qn-100choice_img_no4.png
Q.10
The formation of diethyl ether ethanol is based on [ AIIMS 2009]
  • a) Dehydrogenation reaction
  • b) Hydrogenation reaction
  • c) Dehydration reaction
  • d) Hetrolytic fission reaction
Q.11
Chloropicrin is obtained by the reaction of [ AIIMS 2010]
  • a) steam on carbon tetrachloride
  • b) nitric acid on chlorobenzene
  • c) chlorine on picric acid
  • d) nitric acid on chloroform
Q.12
on Q103) compound B is [ AIIMS 2011]
ch-26_que_no-103_img_no1.png
  • a) (CH3)3CCOOH
  • b) (CH3)3COH
  • c) (CH3)3COC(CH3)3
  • d) All the three
Q.13
Ethanol can be prepared more easily by which reaction? [ AIIMS 2011] i) CH3CH2Br + H2O → CH3CH2OH ii) CH3CH2Br + Ag2O ( in boiling water) → CH3CH2OH
  • a) by (i) reaction
  • b) by (ii) reaction
  • c) Both reactions proceed at same rate
  • d) by none
Q.14
THe formation of cyanohydrin from a ketone is an example of [ IIT 1998]
  • a) Electrophilic addition
  • b) Nucleophilic addition
  • c) Nucleophilic substitution
  • d) Electrophilic substitution
Q.15
on Q106) IUPAC Name of the compound
ch-26_que_no-106_img_no1.png
  • a) 3-N,N-dimethylamino-3-methylpentane
  • b) 3-N,N-dimethylpentanammine
  • c) 3-N,N-dimethyl-3-aminopentane
  • d) 3,3-Dimethylamino-3-methylpentane
Q.16
Among the following, the least stable resonance structure is [ IIT 2007]
  • a)
    ch-26_qn-107choice_img_no1.png
  • b)
    ch-26_qn-107choice_img_no2.png
  • c)
    ch-26_qn-107choice_img_no3.png
  • d)
    ch-26_qn-107choice_img_no4.png
Q.17
The correct stability order of the following resonance structure is [ IIT 2009] I) H2C = N + = N- II) H2C+ - N = N- III) H2C- - N+ ≡ N IV) H2C- = N+
  • a) (I) > (II) > (IV) > (III)
  • b) (I) > (III) > (II) > (IV)
  • c) (II) > (I) > (III) > (IV)
  • d) (III) > (I) > (IV) > (II)
Q.18
Grignard reagent is not prepared in aqueous medium but prepared in ether medium because
  • a) The reagent is highly reactive in ether
  • b) The reagent does not react with water
  • c) The reagent becomes iactive in water
  • d) The reagent reacts with water
Q.19
SN1 reaction of alkyl halides leads to
  • a) retention of configuration
  • b) racemisation
  • c) inversion of configuration
  • d) none of these
Q.20
A mixture of two organic compounds was treated with sodium metal in ether solution. iso-butane was obtained as a product. The two chlorine compounds are
  • a) methyl chloride and propyl chloride
  • b) methyl chloride and ethyl chloride
  • c) isopropyl chloride and methyl chloride
  • d) isopropyl chloride and ethyl chloride
Q.21
Among the following, the molecule with highest dipole momentum is [ IIT 2003] Answer: (a)
  • a) CH3Cl
  • b) CH2Cl2
  • c) CHCl3
  • d) CCl4
Q.22
Which of the following is the example of SN2 reaction?
  • a) CH3Br + OH- → CH3OH + Br-
  • b) CH3CH(Br)CH3 + OH - → CH3CH(OH)CH3 + Br-
  • c) CH3CH2OH → CH2 = CH2
  • d) (CH3)2C(Br)CH3 + OH- → (CH3)2C(OH)CH3 + Br-
Q.23
The molecular formula of saturated compound is C2H4Br2 the formula permit the existence of two ...
  • a) functional isomers
  • b) position isomers
  • c) optical isomers
  • d) cis - trans isomers
Q.24
A compound which does not give iodoform test on treatment with alkali and iodine is [ Roorkee 1993]
  • a) Ethanol
  • b) Acetone
  • c) Diethyl ketone
  • d) Isopropyl alcohol
Q.25
Benzene reacts with n-propyl chloride in the presence of anhydrous AlCl3 to give [ CBSE-PMT 1993]
  • a) 3-propyl-1-chlorobenzene
  • b) n-propylbenzene
  • c) no reaction
  • d) isopropylbenzene
Q.26
When wine is kept in air, it becomes sour due to .... ... [ Chandigarh CET 1998]
  • a) Bacteria
  • b) Oxidation of C2H5OH into CH3COOH
  • c) Virus
  • d) Formic acid
Q.27
In glycerine .... ....
  • a) One primary -OH group is present
  • b) One tertiary -OH group is present
  • c) Two secondary -OH groups are present
  • d) One secondary -OH group is present
Q.28
Absolute ethyl alcohol can be converted to diethyl ether by heating it to 410K in the presence of .... ... [ Bihar CEE 1992]
  • a) Dil. H2SO4
  • b) Dil. HCl
  • c) Conce. H2SO4
  • d) Conc. CH3COOH
Q.29
Scientific study of fermentation was first made by ,,, ,,, [ MP CET 1994]
  • a) Buchner
  • b) Liebig
  • c) Biot
  • d) Pasture
Q.30
An organic compound A reacts with methyl magnesium iodide to form an addition product which on hydrolysis forms the coumpound B, Compound B gives blue colour salt in Victor Meyer's test. The compounds A and B respectively are .... ... [ Tamil Nadu CET 2002]
  • a) Acetaldehyde, t-butyl alcohol
  • b) Acetaldehyde, ethyl alcohol
  • c) Acetaldehyde, iso-propyl alcohol
  • d) Acetone, iso-propyl alcohol
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