Q.1
The substance employed as tear gas is
  • a) westron
  • b) chloretone
  • c) Chloropicrin
  • d) none of the above
Q.2
grignard reagent shows addition on
  • a) - C≡N
  • b) >C=O
  • c) >C=S
  • d) all of these
Q.3
Replacement of Cl of chlorobenzene to give phenol requires drastic conditions but chlorine of 2, 4-dinitrochlorobenzene is readily replaced because
  • a) NO2 makes the electron rich ring at ortho and para position
  • b) NO2 withdraw electrons at meta
  • c) NO2 donate electrons at m-position
  • d) NO2 withdraws electrons at ortho and para position
Q.4
The correct order of melting and boiling points of the primary (1°), secondary (2°) and tertiary (3°) alkyl halides
  • a) P > S > T
  • b) T > S > P
  • c) S > T > P
  • d) T > P > S
Q.5
The C-Mg bond in CH3CH2MgBr is
  • a) polar covalent bond
  • b) non-polar covalent bond
  • c) ionic bond
  • d) hydrogen bond
Q.6
Which one is the most reactive towrds SN1 reaction?
  • a) C6H5CH( C6H5)Br
  • b) C6H5CH( CH3)Br
  • c) C6H5C(CH3)( C6H5)Br
  • d) C6H5CH2Br
Q.7
CO2 on reaction with C2H5MgBr and H2O gives
  • a) ethane
  • b) propionic acid
  • c) acetic acid
  • d) none of these
Q.8
Ethyl alcohol gives ethyl chloride on treatment with
  • a) KCl
  • b) SOCl2
  • c) NaCl
  • d) Cl2
Q.9
Which of the following does not give yellow precipitate with AgNO 3 ?
  • a) (CH3)3-CH2-I
  • b) CH2=CH2-I
  • c) CH2=C-CH3
  • d) CHI3
Q.10
Isocyanide test is used to detect
  • a) primary amines
  • b) primary alcohol
  • c) secondary amines
  • d) secondary alcohol
Q.11
Phenol is heated with CHCl3 and alckoholic KOH when salicylaldehyde is produced. The reaction is kknown as ...
  • a) Sommelete reaction
  • b) Friedel-Craft reaction
  • c) Rosenmund's reaction
  • d) Reimer-Tiemann
Q.12
The Mg - Br bound in CH3CH2MgBr is
  • a) Covalent
  • b) non-polar
  • c) ionic
  • d) none of these
Q.13
Pick up the correct statement about alkyl halide.
  • a) They show H-bonding
  • b) They are soluble in water
  • c) They do not contain any polar bond.
  • d) They are soluble in organic solvents
Q.14
Which of the following are arranged in decreasing order of dipole moment?
  • a) CH3Cl, CH3Br, CH3F
  • b) CH3Cl, CH3F, CH3Br
  • c) CH3Br, CH3Cl, CH3F
  • d) CH3Br, CH3F, CH3Cl
Q.15
The following reaction is known as
ch-24_que_no-83_img_no1.png
  • a) Wurtz reaction
  • b) Fitting reaction
  • c) Frankland's reaction
  • d) Finkelstein's reaction
Q.16
Methyl chloride reacts with silver acetate to yield
  • a) Ethyl acetate
  • b) acetic acid
  • c) Methyl acetate
  • d) Formic acid
Q.17
Which of the following is the reason for insolubility of CCl4 in water
  • a) CCl4 is non-polar
  • b) Water is non-polar
  • c) Water and CCl4 are polar
  • d) None of the above
Q.18
In the reaction below 'X' stands for
ch-24_que_no-88_img_no1.png
  • a) an oxidant
  • b) light and air
  • c) a reductant
  • d) none of these
Q.19
Propyl iodide and isopropyl iodide are
  • a) chain isomers
  • b) metamers
  • c) position isomers
  • d) functional isomers
Q.20
In order to get ethanethiol from C2H5Br
  • a) Na2S
  • b) NaHS
  • c) KCNS
  • d) K2S
Q.21
A yellow precipitate is obtained when aqueous AgNO3 is added to a solution of the compound
  • a) CCl3CHO
  • b) CHCl3
  • c) CH2 = C - CH2I
  • d) C6H5CH2Cl
Q.22
2-chlorobutane obtained by chlorination of butane, will be
  • a) meso-form
  • b) racemic form
  • c) d-form
  • d) l-form
Q.23
Which of the following is primary halide?
  • a) Isopropyl halide
  • b) Sec.butyl halide
  • c) Tert.butyl halide
  • d) Neo-hexyl chloride
Q.24
Which group is displaced by a halogen group
  • a) Hydroxyl (OH) group
  • b) Aldehyde (-CHO) group
  • c) Nitro (-NO2) group
  • d) Keto (C=O) group
Q.25
When CCl4 is boiled with KOH, the product formed is
  • a) formic acid
  • b) carbon dioxide
  • c) methl alcohol
  • d) formaldehyde
Q.26
Which is finally produced when acetylene reacts with HCF?
  • a) CH3CHCl2
  • b) CH2=CHCl
  • c) ClCH=CHCl
  • d) None of the above
Q.27
The alkyl group of Grignard reagent acts as
  • a) free radical
  • b) carbanion
  • c) carbonium ion
  • d) none of the above
Q.28
The phosphrous pentachloride reacts with ethanol to give
  • a) ethyl chloride
  • b) ethylidene chloride
  • c) ethylene chloride
  • d) all of these
Q.29
Chlorine is most reactive towards NaOH in
  • a) CH3Cl
  • b) CH2 = CHCl
  • c) C6H5Cl
  • d) C6H5CH2Cl
Q.30
Ethyl bromide reacts with sodium lead alloy to form?
  • a) Tetraethyl lead
  • b) Ethyl sodium
  • c) Ethane
  • d) Wthene
0 h : 0 m : 1 s