Q.1
ion Q61) Identify the product in the reaction ...[ DUMET 2010]
ch-23_que_no-61_img_no1.png
  • a) PhCH2CH2CHO
  • b) PhCOCH2CH3
  • c) PhCH2COCH3
  • d) PhCOCOMe
Q.2
n-Propyl bromide on treatmnet with ethanolic potassium hydroxide produces ...[ IIT 1987]
  • a) Propanol-1
  • b) Propene
  • c) Propanoil-2
  • d) Ethyl propyl ether
Q.3
Elimination of bromine from 2-bromobutane results in the formation of ...[ JCECE 2008]
  • a) equimolar mixture of 1- and 2-butene
  • b) predominantly -2- butene
  • c) predominantly-1-butene
  • d) predominantly-2-butyne
Q.4
The treatment of benzene with isobutene in the presence of sulphuric acid gives ...[ AIIMS 2003]
  • a) Isobutylbenzene
  • b) tert-Butytlbenzene
  • c) n-butylbenzene
  • d) No reaction
Q.5
The ortho/para directing group among the following is ...[ AIIMS 2003]
  • a) COCH3
  • b) NHCOCH3
  • c) COOH
  • d) CN
Q.6
X is heated with sodalime and gives ethane, X is ... [ AFMC 2005]
  • a) ethanoic acid
  • b) methanoic acid
  • c) propanoic acid
  • d) ether (a) or (c)
Q.7
When acetylene reacts with water in the presence of HgSO4, the compound actually isolated is
  • a) CH3COCH3
  • b) CH3-CHO
  • c) CH2 + CH2
  • d) CH2= CH(OH)
Q.8
Propyne anad propene can be distinguished by ...[ IIT 2000 ]
  • a) conce. H2SO4
  • b) Br2 in CCl4
  • c) dil. KMnO4
  • d) AgNO3 in ammonia
Q.9
Which of the following compounds reacts with sodium toliberate hydrogen gas? [ Pb CET 1986]
  • a) Ethane
  • b) Propylene
  • c) Acetylene
  • d) Benzene
Q.10
When propyne is treated is treated with aqueous H2SO4 in presence of HgSO4, the major product is ...[ IIT 1983]
  • a) Propanal
  • b) n-Propyl hydrogen sulphate
  • c) Acetone
  • d) Propanol
Q.11
The decreasing order of reactivity towards electrophilic substitution reaction of the following compounds,Benzene;Chlorobenzene;Nitrobenzene;Toluene is ...[ Kerala PMT 2008]
  • a) 1 > 3 > 4 > 2
  • b) 4 > 1 > > 3 > 2
  • c) 4 > 1 > 2 > 3
  • d) 4 > 2 > 1 > 3
Q.12
Coke is obtained by heating coal in the ... [ Pb CET 1988]
  • a) Presence of air
  • b) Restricted supply of air
  • c) Absence of air
  • d) Presence of catalyst
Q.13
In the preparation of alkene from alcohol using Al2O3 which is effective factor? [ AIPMT 2001]
  • a) Porosity of Al2O3
  • b) Temperature
  • c) Concentration
  • d) Surface area of Al2O3
Q.14
The conversion of ClCH=CH-Cl to Cl2CH - CHCl2 can be carried out with ... [ DEC 2000]
  • a) Cl2
  • b) Cl2/>hν
  • c) Cl2/AlCl3
  • d) Cl2/aq.NaOH
Q.15
Liquid hydrocarbons is converted into a mixture of gaseous hydrocarbon by ...[ AIPMT (Prelims) 2010]
  • a) cracking
  • b) hydrolysis
  • c) oxidation
  • d) distillation
Q.16
Number of isomers which can be theoretically obtained on monochlorination of 2-methylbutane is ... [ Pb. CET 1989]
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.17
Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne? [ AIPMT 2012]
  • a) NaNH2
  • b) HCl
  • c) O2
  • d) Br2
Q.18
eaction of propene with HOCl proceedsvia addition of ...[ IIT 2001]
  • a) H+ in the first step
  • b) Cl+ in the first step
  • c) OH- in the first stape
  • d) Cl+ and OH- in a single step
Q.19
A salt producing hydrocarbon among these compound is ... [ KCET 2002]
  • a) Ethene
  • b) Ethyne
  • c) Methane
  • d) Ethane
Q.20
ion Q80) What is M and N in following reaction? [ IIT 2006]
ch-23_que_no-80_img_no1.png
  • a) 6, 6
  • b) 6, 4
  • c) 4, 4
  • d) 3, 3
Q.21
Meta-directing and deactivating group in aromatic electrophilic substitution is ...[ Kerala PMT 2012]
  • a) NO3-
  • b) NO2
  • c) NO2-
  • d) NO2+
Q.22
Tetrabromoethane on heating with Zn gives ... ..[BHU 2000 ]
  • a) Ethyl bromide
  • b) Ethane
  • c) Ethene
  • d) Ethyne
Q.23
CH3COOH is reacted with HC ≡ CH in presence of Hg2+, the product is
  • a)
    ch-23_qn-83choice_img_no1.png
  • b) CH3CH2(OOC - CH3)
  • c) CH3CH(OOC - CH3)2
  • d) none of the above
Q.24
Which of the following will yield a mixture of 2-chlorobutene and 3-chlorobutene on treatment with HCl
  • a) CH2=C=CH-CH3
  • b) H2C= C(CH3)-CH=CH2
  • c) CH3 = CH - CH = CH2
  • d) HC + CH - CH = CH2
Q.25
Main constituent(s) of LPG is/ar ...[ AFMC 2009]
  • a) methane
  • b) H2, CH4, iso-butane
  • c) iso-butane, propane
  • d) none of these
Q.26
he highest boiling point is expected for ...[ IIT 1986]
  • a) Isooctane
  • b) n-octane
  • c) 2,2,3,3- tetramethylbutane
  • d) n-butane
Q.27
2-hexyne gives trans-2-hexene on treatment with ...[ IIT 2004]
  • a) Li/NH3
  • b) Pd/BaSO4
  • c) LiAlH4
  • d) Pt/H2
Q.28
Which is the most suitable reagent among the following to distinguish compound (3) from the rest of the compound? CH3 - C ≡ C - CH3   CH3 - CH2 - CH2 - CH3 CH3 - CH2 - C ≡ CH   CH3 - CH = CH2
  • a) Bromine in carbon tetrachloride
  • b) Bromine in acetic acid
  • c) Alk. KMnO4
  • d) Ammoniacal silver nitrate
Q.29
ion Q89) Arrange the following in increasing order of their release of energy on combusion
ch-23_que_no-89_img_no1.png
ch-23_que_no-89_img_no2.png
  • a) III < IV
  • b) I < II < IV < III
  • c) III < IV < II < I
  • d) I > II > III > IV
Q.30
The catalyst used in the Wacker process of oxidation of ethene to ethanal is ...[ Kerala PMT 2012]
  • a) PdCl2
  • b) V2O5
  • c) Nickel complexes
  • d) TiCl4 and Al(CH3)3
0 h : 0 m : 1 s