Q.1.
The reactivity order of alkyl halides depends upon
-
15%
a) nature of alkyl group only
-
77%
b) nature of both alkyl group and halogen atom
-
8%
c) Halogen group only
-
0%
d) None of the above
Q.2.
Monohalogen derivative of alanes with alcoholic KOH gives
-
17%
a) alkane
-
67%
b) alkene
-
0%
c) alkyne
-
17%
d) alicyclic hydrocarbon
Q.3.
Which of the following reaction can give freon (CCl2F2)
-
40%
a) CCl4 + F2 →
-
10%
b) CH3Cl + F2 →
-
20%
c) C+F2+Cl2 →
-
30%
d)
Q.4.
When vinyl chloride is passed through alcoholic KOH solution
-
0%
a) it has no action
-
20%
b) it dissolves
-
80%
c) it forms acetylene
-
0%
d) it forms vinyl alcohol
Q.5.
which of the following does not react with benzene in presence of anhydrous AlCl3
-
67%
a) C6H5Cl
-
22%
b) C6H5CH2Cl
-
11%
c) CH3Cl
-
0%
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
-
12%
a) Assertion is correct but Reason is wrong
-
12%
b) Assertion is wrong but Reason is correct
-
62%
c) Both Assertion and Reason are correct and Reason is correct explanation of Assertion
-
12%
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
-
0%
a) It is inflammable
-
78%
b) It oxidized to poisonous gas phosgene
-
11%
c)
-
11%
d)
Q.8.
Idntify (Z) in the following reaction series
-
25%
a)
-
38%
b)
-
25%
c)
-
12%
d) CH3 - CH2 - CN
Q.9.
1, 3-dibromopropane reacts with metallic zinc to form
-
38%
a) cyclopropane
-
12%
b) hexane
-
38%
c) propene
-
12%
d) hexane
Q.10.
Grignard reagent undergoes
-
0%
a) nucleophilic substitution
-
0%
b) nucleophilic addition
-
86%
c) both (a) and (b)
-
14%
d) none of the above
Q.11.
Which of the following is least reactive in a nucleophilic substitution reaction?
-
29%
a) (CH3)3CCl
-
29%
b) CH2 = CHCl
-
43%
c) CH3CH2Cl
-
0%
d) CH2 = CHCH2Cl
Q.12.
Ethylene dichloride and ethylidene chloride are isometric compounds. Identify the statement which is not applicable to both of them?
-
0%
a) Give Fehling test
-
80%
b) Resct with aqueous potash and give the same products
-
0%
c) Are dihalides
-
20%
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
-
0%
a) CH3COOH
-
50%
b) CH2BrCOOH
-
25%
c) CCl4
-
25%
d) CH3Cl
Q.14.
A salt solution is treated with chloroform drops and is shaken with chlorine water. Chloroform layer becomes violet, solution contains
-
0%
a) NO2-
-
25%
b) NO3-
-
25%
c) Br-
-
50%
d) I-
Q.15.
hypnotic drug Chloretone is prepared by reaction of acetone with
-
0%
a) ethyl chloride
-
50%
b) Chloroform
-
0%
c) methyl chloride
-
50%
d) Carbon tetra chloride
Q.16.
Anhydrous HCl gas, on passing through ethyl alcohol, in presence of anhy.ZnCl2 gives
-
0%
a) ethane
-
60%
b) ethyl chloride
-
20%
c) etahne
-
20%
d) CCl4
Q.17.
The reactivities of methyl chloride (A), propyl chloride (B) and chlorobenzene (C) are in the order
-
20%
a) A > B > C
-
0%
b) C > B > A
-
60%
c) A > C > B
-
20%
d) B > A > C
Q.18.
Polymer of chloroethylene is
-
50%
a) PVC
-
0%
b) teflon
-
25%
c) terylene
-
25%
d) nulon
Q.19.
Carbon tetrachloride reacts with steam at 500°C to give
-
25%
a) COCl2
-
25%
b) CHCl3
-
50%
c) both (a) and (b)
-
0%
d) none of these
Q.20.
In the reaction CH3C ≡ CNa+ + (CH3)2CHCl → the product formed is
-
25%
a) propyne
-
50%
b) propyne and propene
-
25%
c) 4-methyl-2-pentyne
-
0%
d) none of the above
Q.21.
Benzyl chloride is formed by treating toluene with Cl2 in
-
50%
a) presence of light
-
0%
b) absence of light
-
50%
c) treating benzene with anhy. AlCl3
-
0%
d) treating benzene with As2S3
Q.22.
Which of the following can be used as local anaesthetic?
-
60%
a) CHCl3
-
0%
b) C2H4 with O2
-
40%
c) C2H5Cl
-
0%
d) C2H5OH
Q.23.
The industrial preparation of chloroform employs acetone and
-
25%
a) phosgen
-
25%
b) calcium hypochloride
-
50%
c) chlorine gas
-
0%
d) sodium chloride
Q.24.
An alyl iodide on standing darkens, due to
-
25%
a) formation of alkenes
-
0%
b) formatation of alkeyenes
-
50%
c) libration of iodine
-
25%
d) oxidation
Q.25.
In the following reaction X and Y respectively are
-
20%
a) benzene, benzoic acid
-
40%
b) toluene, benzaldehyde
-
40%
c) toluene, benzoic acid
-
0%
d) benzene, benzaldehyde
Q.26.
C2H5Br can be obtained in the laboratory by the action of ethyl alcohol with
-
0%
a) Br2
-
25%
b) KBr
-
75%
c) KBr and conc. H2SO4
-
0%
d) NH4Br
Q.27.
Ethylidene dichloride on treatmnet with aqueous KOH gives
-
60%
a) CH3CHO
-
20%
b) HCO
-
0%
c)
-
20%
d)
Q.28.
Which one is liquid at room temperature
-
0%
a) C2H5Br
-
40%
b) C2H5Cl
-
0%
c) CH3Cl
-
60%
d) CH3Br
Q.29.
Chloral is
-
25%
a) CCl3.CO.CCl3
-
0%
b) CCl3.CH2OH
-
0%
c) CCl3.CO.CH3
-
75%
d) CCl3CHO
Q.30.
Which is most reactive for SN2 reactions?
-
50%
a) CH3I
-
0%
b) C2H5I
-
25%
c) C3H7I
-
25%
d) C4H9I