The reagent used for dehalogenation of 1,2-dichloropropane is
50%
a) Zn dust
30%
b) Zn-Hg
0%
c) Na
20%
d) Zn-Cu couple
Q.2.
At higher temperature, iodoform reaction is given by
0%
a) CH3COOCH3
50%
b) CH3COOC6H5
38%
c) C6H5COOCH3
12%
d) CH3COOC2H5
Q.3.
A small amount of alcohol is usually added to CHCl3 bottles because
0%
a) it retards the oxidation of CHCl3 to phosgene
29%
b) it retards the anaesthetic property of CCH3
71%
c) both (b) and (c)
0%
d) it convers any phosgene formed to harmless ethyl carbonate
Q.4.
Which compound on reaction with ethyl magnesium bromide and water will form 2-methyl-2-butanol?
38%
a) C2H5COCH3
38%
b) CH3COOCH3
25%
c) CH3COCH3
0%
d) CH3CH2CHO
Q.5.
CH3NH2 reacts with CH3MgX to give
30%
a) Ethane
30%
b) Methane
10%
c) Ethanol
30%
d) Methanol
Q.6.
Which of the following can be obtained by halide exchange method
50%
a) CH3I
20%
b) CH3Cl
0%
c) C2H5Cl
30%
d) CH3Br
Q.7.
Strong reducing agent converts CHCI3 into
56%
a) CH4
0%
b) C2H6
11%
c) C2H4
33%
d) C2H2
Q.8.
Ethyl bromide and isopropyl chloride can be distinguished by
14%
a) alcoholic AgNO3
0%
b) comparing their colours
29%
c) burning the compound on spatual
57%
d) aqueous KOH
Q.9.
Preparation of alkyl halids in laboratory is least preferred by
0%
a) halide exchange
43%
b) treatment of alcohol
29%
c) addition of hydrogen halides to alkenes
29%
d) direct halogenation of alkanes
Q.10.
PVC plastics are produced by the polymerization of
0%
a) allyl chloride
86%
b) vinyl chloride
0%
c) vinyl acetate
14%
d) ethene
Q.11.
The product obtained on treatment of ethyl chloride with potassium cyanide is reduced by sodium and alcohol to give
29%
a) propyl amine
43%
b) ethyl amine
29%
c) diethyl amine
0%
d) acetic acid
Q.12.
Methyl bromide is not used
0%
a) for dyeing cloths
33%
b) as an insecticide
17%
c) as disinfectant
50%
d) as disinfectant for young fruit trees
Q.13.
Which of the following is gem-dihalide?
25%
a) CH3CHBr2
25%
b) BrCH2CH2Br
0%
c) CH3CHBrCH2Br
50%
d) CH3CHBrCH2CH2CH2Br
Q.14.
PCl5 reacts with propanone, to give
0%
a) propanol
50%
b) propanal
17%
c) propane chloride
33%
d) gem dichloride
Q.15.
Grignard reagent with hydrogen cyanide gives
14%
a) aldehyde
14%
b) ketone
0%
c) alcohol
71%
d) both (a) and (b)
Q.16.
Alkyl halides on treatment with a suspension of Ag2O moist in ether gives
14%
a) alkanol
14%
b) alkanal
0%
c) alkanes
71%
d) alkoxy alkane
Q.17.
When iodoform is heated with silver powder it forms
0%
a) acetaldehyde
17%
b) ethane
0%
c) ethylene
83%
d) acetylene
Q.18.
Benzene on reaction with a mixture of HNO3 and H2SO4 follod by reaction of Cl2/FeCl3 gives
17%
a) 2-chloro-1-nitrobenzene
33%
b)3-chloro-1-nitrobenzene
50%
c) 4-chloro-1nitrobenzne
0%
d) none of the above
Q.19.
A mixture of 1-chloropropane and 2-chloropropane when treated with alcoholic KOH, it gives
12%
a) isopropylalcohol
12%
b) isopropylene
38%
c) 1-propene
38%
d) 2-propene
Q.20.
If methyl iodide and ethyl iodide are mixed in equal proportions, and the mixture is treated with metallic sodium in presence of dry ether, the number of possible products formed is
14%
a) 1
57%
b) 2
29%
c) 3
0%
d) 4
Q.21.
Which statement is wrong about chloroform?
0%
a) Chloroform has sp3 hybridised carbon atom
57%
b) Chloroform has sp2 hybridised carbon atom
14%
c) Chloroform is used as solvant
29%
d) Chloroform hass distorted tetrahedral shape
Q.22.
Which reagent is useful in increasing the carbon chain of an alkyl halide
0%
a) HCN
29%
b) KCN
29%
c) NH4CN
43%
d) AgCN
Q.23.
Sodium ethoxide reacts with ethyl iodide to give
14%
a) C2H5I
14%
b) CH3CH3
57%
c) C2H5OC2H5
14%
d) C2H5OH
Q.24.
The combination which produces t- butyl alcohol when treatment with Grignard reagent
20%
a) CH3MgBr + CH3COCH3
20%
b) C2H5MgBr + CH3COCH3
40%
c) CH3MgBr + (CH3)2CHOH
20%
d) CH3MgBr + (CH3)3COH
Q.25.
1-phenyl, 2-chloropropane on treating with alc.KOH gives mainly
40%
a) 1-phenylpropene
20%
b) 2-phenylpropene
40%
c) 1-phenylpropan-2-ol
0%
d) 1-phenylpropan-1-ol
Q.26.
Ethyl dichloride can be prepared by adding HCl to
0%
a) ethylene
20%
b) ethane
20%
c) acetylene
60%
d) ethylene glycol
Q.27.
Assertion: n-butyl chloride has lower b.p. than n-butyl bromide Reason: The b.p. increases with with increase in molar mass
20%
a) Assertion is correct but Reason is wrong
20%
b) Assertion is wrong but Reason is correct
40%
c) Both Assertion and Reason are correct and Reason is correct explanation of Assertion
20%
d) Both Assertion and Reason are correct but Reason is not correct explanation of Assertion
Q.28.
The CCl4 and CHCl3 can be distinguished
20%
a) RNH2 + KOH alc
20%
b) RCN + KOH alc
20%
c) Hydrolysis
40%
d) burning in air
Q.29.
The reagent used in the conversion of 1-butanol to 1-bromobutane is
0%
a) CHBr3
40%
b) Br2
40%
c) CH3Br
20%
d) P + Br2
Q.30.
Formation of alkane by the action of Zn on alkyl halide is called
17%
a) Wurtz reaction
33%
b) Frankland's reaction
17%
c) Kolbe's reaction
33%
d) Cannizzaro's reaction
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