JEE Chemistry - Some basic principles of organic chemistry

Buy JEE Main Engineering Entrance Exam (Starter) Practice test pack

Question - 1

The substance which has been asaigned octane number of -45 is

  • A n -octane
  • B n -heptane
  • C n -nonane
  • D None

Question - 2

For which of the following compounds the Lassaigne's test of nitrogen will fail?

  • A H2 NCONH.NH2 HCL
  • B H2N.NH2.2HCL
  • C NH2 CONH2
  • D None

Question - 3

The 1996 Nobel Prize in chemistry goes to

  • A F. Curl
  • B H.W. Kroto
  • C E.Smalley
  • D jointly to the above three persons

Question - 4

On treating phenol with PC15 the main product is

  • A chlorobenzene
  • B triphenyl phosphate
  • C hexachlorobenzane
  • D BHC

Question - 5

Arrange the following compounds in order of increasing dipole moment : Toluene (1); m-dichlorobenzene (II); o-dichlorobenzene (III); and p-dichlorobenzene (IV).

  • A I < IV< II< III
  • B IV< I < II < III
  • C IV < I < III < II
  • D IV< II < I < III

Question - 6

The regent used to convert ethanoic acid to ethanol is

  • A LiAlH4
  • B BH3
  • C PCl3
  • D K2Cr2O7/H+

Question - 7

Ice-cold hydrochloric acid is added to dimethyl ether the product formed is

  • A dymethoxy methane
  • B dymethyl oxinium chloride
  • C methyl chloride
  • D methanol and methyl chloride

Question - 8

The acid which does not from from anhydride when treated with P4O10 is

  • A formic acid
  • B acetic acid
  • C propanoic acid
  • D benzoic acid

Question - 9

The reaction \(2CH_{ 3 }COOC_{ 2 }H_{ 5 }\overset { \overset { \_ }{ O } C_{ 2 }H_{ 5 } }{ \longrightarrow } CH_{ 3 }COCH_{ 2 }COOC_{ 2 }H_{ 5 }\)  is called

  • A perkin
  • B Tischenko
  • C Claisen
  • D schotten Bauman

Question - 10

\(CH_{ 3 }CH_{ 2 }COOH\overset { { Cl_{ 2 } }/{ Fe } }{ \longrightarrow } X\overset { alc }{ \underset { KOH }{ \longrightarrow } } Y\) Compound Y is

  • A Ch3CH2OH
  • B CH3CH2CN
  • C CH2=CHCOOH
  • D CH3CHClCOOH