Hydrocarbons MCQs – 7

1) Conjugated double bonds are present in
a) 1, 5 – Hexadiene
b) Isobutylene
c) Butylene
d) Butadiene

2) Benzaldehyde on reduction with NaBH4 gives
a) Benzoic acid
b) Phenol
c) Benzyl alcohol
d) Benzene

3) Acetaldehyde is produced from one of the following in presence of aqueous KMnO4 solution:
a) C2H6
b) C2H5Cl
c) C2H5OH
d) CH3OH

4) The Rosenmundi reaction is used for the preparation of
a) Aldehydes
b) Ethers
c) Ketones
d) Esters

5) Water gas is a mixture of
a) H2 and CO2
b) H2  &  CO
c) H2  &  CH4
d) CO  and  N2

6) Acetic acid is manufactured by the fermentation of
a) Ethanol
b) Methanol
c) Propanal
d) Propanol

7) Mesooxalic acid on oxidation forms
a) Oxalic acid
b) CO2
c) Oxalic acid  and  CO2
d) None of these

8) Salicylic acid on heating with sodalime ( CaO + NaOH ) gives
a) O – xylene
b) Benzone acid
c) Phenol
d) Toluene

9) A compound with the formula NH2CH2 COOH may behave
a) As an acid
b) As a base
c) Both as an acid and as a base
d) Neither as an acid nor a base

10) The IUPAC name of ( C2 H5 )2 NCH2 CHCl COOH is
a) 2 – Chloro – 2 – carbony – N – ethylethane
b) 2 – Chloro – 3 – ( N, N – diethylamino ) – Propanoic acid
c) 2 – Chloro – 1 – ( N, N – diethylamino ) propanoic acid
d) 2 – Chloro – 2 – Carboxy diethyl Amine

11) A gas, which burns with a blue flame is
a) CO
b) O2
c) N2
d) CO2

12) Litharge is chemically
a) PbO
b) PbO2
c) Pb3O4
d) Pb ( CH3 COO ) 2

13) The IUPAC name of the compound OHC ( CH2 )4 COOH is
a) 6 – Oxo – hexanoic acid
b) Hexan – 1 – al – 6 – oic acid
c) 1 – carboxy hexanal
d) None of these

14) P – Anisic acid is a
a) Dibasic acid
b) Monobasic acid
c) Tribasic acid
d) None of these

15) The reducing agent in Wolf-Kishner’s reduction is
a) LiAlH4
b) NaBH4
c) NH2NH2/KOH
d) Zn ( Hg ) / HCl

16) BiCl3 on hydrolysis forms a white precipitate of
a) Bismuthic acid
b) Bismuth oxychloride
c) Bismuth pentachloride
d) Bismuth hydroxide

17) The amine which can exhibit enantiomerism is
a) Benzenamine
b) 2 – Butanamine
c) 2 – Propanamine
d) All of these

18) Acetamide can react with
a) HCl
b) NaOH
c) HCl and NaOH
d) None of these

19) The number of canonical forms of diazomethane are
a) 2
b) 3
c) 4
d) None of these

20) Nitrobenzene on reduction with   LiAlH4  in presence of ether forms
a) Aniline
b) P – amino phenol
c) Azobenzene
d) None of these

21) Ethanamide reacts rapidly with
a) C2H5OH
b) NaOH
c) C2H5NH2
d) All of these

22) Aniline on oxidation with Na2Cr2O7 and   H2SO4 gives
a) Nitrosoaniline
b) m – Amino benzoic acid
c) Aniline nitrate
d) P – Benzoquinone

23) Benzene diazonium chloride reacts with hypo phosphorous acid to give
a) Phenol
b) Toluene
c) Phenyl Isocyanate
d) Benzene

24) Aniline on reaction with an aqueous solution of bromine gives
a) O – Bromoaniline
b) P – Bromoaniline
c) 2, 4, 6 Tribromoaniline
d) m – Bromoaniline

25) The complete hydrolysis of RCN under acidic conditions gives
a) RCOOH
b) RCONH2
c) RCH2NH2
d) RNH2

26) The structural formula of ethane nitrile is
a) C2H5C = N
b) CH3 – C = N
c) C2H5NO2
d) CH3NO2

27) The major product obtained when acetanilide is treated with Br2 in CH3COOH is
a) O – Bromoaniline
b) P – Bromoacetanilide
c) m – Bromoacetanilide
d) O – Bromoacetanilide

28) The reduction of benzene diazonium chloride with SnCl2 / HCl forms

a) Phenyl hydrazine hydrochloride
b) Phenylene chloride
c) Phenyl hydrazine
d) All of these

29) The value of Kb is highest in the case of
a) p – methoxy aniline
b) p – chloroaniline
c) p – nitroaniline
d) p – methyl aniline

30) Nitrobenzene on treatment with Al – Hg and water gives
a) Azobenzene
b) Aniline
c) Azoxy benzene
d) Hydroxyphenyl amine

31) Amino benzene reacts with carbonyl chloride to give
a) Chlorobenzene
b) Benzal dehyde
c) Phenyl isocyanate
d) Anine hydrochloride

32) Aniline reacts with benzoyl chloride in presence of NaOH to yield  N – phenyl benzamide ( C6H5 NH COC6H5 ). This reaction is known as
a) Diazotisation
b) the Cannizzaro reaction
c) Schotten Bauman reaction
d) None of these

33) The end product in the reaction
a) CH3CN

b) CH3CH2NH2
c) CH3NH2
d) CH3CO NH2

34) Hoffman elimination results in the formation of a
a) 3o Amine and alkene

b) 1o Amine and alkene

c) 2o Amine and alkene

d) 1o Amine and alkyne

35) The Schiemann reaction is between
a) C6H5N2 + X +  CuBr
b) C6H5N2 X   +  HBF4
c) C6H5N+ X  +  AlX3
d) C6H5N2 +   +  AlX3

36) CH3NH2 is obtained from NH3 by the
a) Hoffmann reaction
b) Cannizaro reaction
c) Frankland reaction
d) Hoffmann bromide reaction

37) Aniline is used in the
a) crimping of wool
b) Dyeing industry
c) Making of glue
d) making of fast drying varnish

38) The structural formula of methyl amino methane is
a) (CH3)2 CHNH2
b) (CH3)3 N
c) (CH3)2NH
d) CH3NH 2

39) Nitro ethane is acidic only towards
a) Sodium carbonate
b) Sodium hydroxide
c) Aqueous ammonia
d) Alcohol

40) Aniline on treatment with chloroplatinic acid forms
a) Aniline chloroplatinate
b) Aniline dichloroplatinate
c) Aniline trichloroplatin
d) All of these

41) Waxes are esters of higher fatty acids with long chain
a) Monohydric alcohols
b) Dihydric alcohols
c) Trihydric alcohols
d) All of these

42) 

a) Conc. HCl
b) Dilute HCl
c) Alkaline H2O
d) Conc : H2SO4

43)
a) Peroxide effect
b) Mendius reduction ( Reduction with Na / C2H5OH )
c) Reduction with LiAlH4
d) Reduction with H2 in presence of Pt

44)
a) Carbon Powder
b) CO2
c) CO
d) HCOOH

45) 

a) Zinc ˜ HCl
b) Ni
c) Li Al H4
d) Pt

46) 
a) CF4
b) C Cl2F2
c) C ClF3
d) C Cl3F

47)
a) Below 273 K
b) 273 K to 278 K
c) 273 K to 283 K
d) 273 K to 293 K

48)
a) Rosenmund’s reduction
b) Friedal Craft’s reaction
c) Clemmenson’s reduction
d) Hell Volhard Zelinsky reaction

49)
a) CH3 – CH2 – CH2 – OH
b) CH3 – CH ( OH ) –   CH3
c) CH3 – CH ( HSO4 )  – CH3
d) None of these

50)
a) Acetylene
b) Carbon and steam
c) Maleic acid
d) Acrolein

51) The modified form of Sandmeyer’s reaction to produce chloro benzene from benzene diazonium chloride by using copper powder and hydrogen halides is called
a) Balz- Schiemann reaction
b) Gattermann’s reaction
c) Phthalimide reaction
d) None of these

52)
a) Phorone
b) Mesitylene
c) Glyoxal
d) Paraldehyde

53)
a) C6H5CH2OH
b) C6H5COOH
c) C6 H5CHO
d) C6H5CH2Cl

54)
a) Salicylic acid
b) Sulphanilic acid
c) Phenyl hydrazene
d) No reaction take place

55)
a)
b)
c) CH ¦ CH
d) CH2 = CH2

56)
a) Riemer Tiemann Reaction
b) Kolbe reaction
c) Hoffmann’s reaction
d) Rosenmund’s reaction

57) When acetylene is passed through a red hot copper tube, the product formed is
a) Benzene
b) Toluene
c) Ethane
d) Phenol

58)
a) Kolbe reaction
b) Clemmenson’s reduction
c) Rosenmund’s reduction
d) Williamson’s reaction

59) @
a) Cannizzaro’s reaction
b) Etards reaction
c) Sand meyer’s reaction
d) Reimer Tiemann reaction

60) The French chemist Victor Grignard was awarded the Nobel Prize in chemistry in the year
a) 1902
b) 1912
c) 1922
d) 1926

61) The dipole moment of chlorobenzene is
a) 2.05 D
b) 1.73 D
c) 1.33 D
d) 2.53 D

62) In Dow’s process for the preparation of phenol from chloro benzene, 10% aqueous NaOH is treated with chlorobenzene at a temperature
a) 523 K
b) 573 K
c) 623 K
d) 673 K

63) Alcoholic solution of KOH is a specific reagent for
a) Dehalogenation
b) Dehydrohalogenation
c) Dehydration
d) Dehydrogenation

64) The word formic acid is originated from the word ‘ formic’ which meant
a) Fats
b) Ant
c) Insects
d) Frog

65) Hinsberg’s reagent is
a) Nitrosyl chloride
b) Acetyl chloride
c) Benzoyl chloride
d) Benzene sulphonyl chloride

66) Which of the following compounds will not give a positive iodoform test?
a) CH 3 OH
b) CH 3 CHOH CH 3
c) CH 3 COOCH 3
d) Both (a) and (c)

67) Which of the following is a secondary alcohol?
a) iso-butyl alcohol
b) 2-methyl-2-propanol
c) pentanol-1
d) none of the above

68) Which of the following is/are organo metallic compounds ?
a) haemoglobin
b) sodium acetate
c) chlorophyll
d) both a and c

69) Fenton’s reagent is
a) anhydrous ZnCI 2 and concentrated HCI
b) alk. KMnO 4
c) acid K 2Cr 2O 7
d) Fe2+ and H 2 O 2

70) Which of the following can be easily dehydrated?
a) CH 3 OH
b) (CH 3 ) 2 CHOH
c) C 2H 5OH
d) (CH 3 ) 3 COH

71) Phenol reacts with methyl magnesium bromide to give an
a) alkane
b) arene
c) alkoxide
d) ester


Answer

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