Q.1
The reactivity order of alkyl halides depends upon
  • a) nature of alkyl group only
  • b) nature of both alkyl group and halogen atom
  • c) Halogen group only
  • d) None of the above
Q.2
Monohalogen derivative of alanes with alcoholic KOH gives
  • a) alkane
  • b) alkene
  • c) alkyne
  • d) alicyclic hydrocarbon
Q.3
Which of the following reaction can give freon (CCl2F2)
  • a) CCl4 + F2 →
    ch-24_qn-135choice_img_no4.png
  • b) CH3Cl + F2 →
  • c) C+F2+Cl2 →
  • d)
Q.4
When vinyl chloride is passed through alcoholic KOH solution
  • a) it has no action
  • b) it dissolves
  • c) it forms acetylene
  • d) it forms vinyl alcohol
Q.5
which of the following does not react with benzene in presence of anhydrous AlCl3
  • a) C6H5Cl
  • b) C6H5CH2Cl
  • c) CH3Cl
  • d) C6H5CH2CH2CH2Cl
Q.6
ssertion: RI is more reactive than RCl towards SN reaction Reason: The rate of reaction for SN1 or SN2 mechanism is RI > RCl
  • a) Assertion is correct but Reason is wrong
  • b) Assertion is wrong but Reason is correct
  • c) Both Assertion and Reason are correct and Reason is correct explanation of Assertion
  • d) Both Assertion and Reason are correct but Reason is not correct explanation of Assertion
Q.7
Chloroform is kept in dark coloured bottles because
  • a) It is inflammable
  • b) It oxidized to poisonous gas phosgene
  • c)
  • d)
Q.8
Idntify (Z) in the following reaction series
ch-24_que_no-141_img_no1.png
  • a)
    ch-24_qn-141choice_img_no1.png
  • b)
    ch-24_qn-141choice_img_no2.png
  • c)
    ch-24_qn-141choice_img_no3.png
  • d) CH3 - CH2 - CN
Q.9
1, 3-dibromopropane reacts with metallic zinc to form
  • a) cyclopropane
  • b) hexane
  • c) propene
  • d) hexane
Q.10
Grignard reagent undergoes
  • a) nucleophilic substitution
  • b) nucleophilic addition
  • c) both (a) and (b)
  • d) none of the above
Q.11
Which of the following is least reactive in a nucleophilic substitution reaction?
  • a) (CH3)3CCl
  • b) CH2 = CHCl
  • c) CH3CH2Cl
  • d) CH2 = CHCH2Cl
Q.12
Ethylene dichloride and ethylidene chloride are isometric compounds. Identify the statement which is not applicable to both of them?
  • a) Give Fehling test
  • b) Resct with aqueous potash and give the same products
  • c) Are dihalides
  • d) react with alcoholic potash
Q.13
A mixture of sodium acetate and sodalime is heated and the product trated with excess of chlorine in presence of bright sunlite. the product is
  • a) CH3COOH
  • b) CH2BrCOOH
  • c) CCl4
  • d) CH3Cl
Q.14
A salt solution is treated with chloroform drops and is shaken with chlorine water. Chloroform layer becomes violet, solution contains
  • a) NO2-
  • b) NO3-
  • c) Br-
  • d) I-
Q.15
hypnotic drug Chloretone is prepared by reaction of acetone with
  • a) ethyl chloride
  • b) Chloroform
  • c) methyl chloride
  • d) Carbon tetra chloride
Q.16
Anhydrous HCl gas, on passing through ethyl alcohol, in presence of anhy.ZnCl2 gives
  • a) ethane
  • b) ethyl chloride
  • c) etahne
  • d) CCl4
Q.17
The reactivities of methyl chloride (A), propyl chloride (B) and chlorobenzene (C) are in the order
  • a) A > B > C
  • b) C > B > A
  • c) A > C > B
  • d) B > A > C
Q.18
Polymer of chloroethylene is
  • a) PVC
  • b) teflon
  • c) terylene
  • d) nulon
Q.19
Carbon tetrachloride reacts with steam at 500°C to give
  • a) COCl2
  • b) CHCl3
  • c) both (a) and (b)
  • d) none of these
Q.20
In the reaction CH3C ≡ CNa+ + (CH3)2CHCl → the product formed is
  • a) propyne
  • b) propyne and propene
  • c) 4-methyl-2-pentyne
  • d) none of the above
Q.21
Benzyl chloride is formed by treating toluene with Cl2 in
  • a) presence of light
  • b) absence of light
  • c) treating benzene with anhy. AlCl3
  • d) treating benzene with As2S3
Q.22
Which of the following can be used as local anaesthetic?
  • a) CHCl3
  • b) C2H4 with O2
  • c) C2H5Cl
  • d) C2H5OH
Q.23
The industrial preparation of chloroform employs acetone and
  • a) phosgen
  • b) calcium hypochloride
  • c) chlorine gas
  • d) sodium chloride
Q.24
An alyl iodide on standing darkens, due to
  • a) formation of alkenes
  • b) formatation of alkeyenes
  • c) libration of iodine
  • d) oxidation
Q.25
In the following reaction X and Y respectively are
ch-24_que_no-161_img_no1.png
  • a) benzene, benzoic acid
  • b) toluene, benzaldehyde
  • c) toluene, benzoic acid
  • d) benzene, benzaldehyde
Q.26
C2H5Br can be obtained in the laboratory by the action of ethyl alcohol with
  • a) Br2
  • b) KBr
  • c) KBr and conc. H2SO4
  • d) NH4Br
Q.27
Ethylidene dichloride on treatmnet with aqueous KOH gives
  • a) CH3CHO
    ch-24_qn-164choice_img_no3.png
  • b) HCO
    ch-24_qn-164choice_img_no4.png
  • c)
  • d)
Q.28
Which one is liquid at room temperature
  • a) C2H5Br
  • b) C2H5Cl
  • c) CH3Cl
  • d) CH3Br
Q.29
Chloral is
  • a) CCl3.CO.CCl3
  • b) CCl3.CH2OH
  • c) CCl3.CO.CH3
  • d) CCl3CHO
Q.30
Which is most reactive for SN2 reactions?
  • a) CH3I
  • b) C2H5I
  • c) C3H7I
  • d) C4H9I
0 h : 0 m : 1 s