If two compounds have the same empirical formula but different molecular formula they must have
  • Different percentage composition
  • Different molecular weight
  • Same viscosity
  • Same vapour density
Identify the chiral molecule among the following:
  • Isopropyl alcohol
  • 2-pentanol
  • 1-bromo 3-butene
  • Isobutyl alcohol
The displacement of electrons in a multiple bond in the presence of attacking reagent is called
  • Inductive effect
  • Electromeric effect
  • Resonance
  • Hyper conjugation.
Which of the following cannot be represented by resonance structures?
  • Dimethyl ether
  • Nitrate anion
  • Carboxylate anion
  • Toluene
An organic compound which produces a bluish green coloured flame on heating in presence of copper is
  • Chlorobenzene
  • Benzaldehyde
  • Aniline
  • Benzoic acid
Insulin contains4% sulphur. The minimum molecular weight of insulin is
  • 350
  • 470
  • 560
  • 940
What is the correct IUPAC name of
  • 4-methoxy-2-nitrobenzaldehyde
  • 4-formyl-3-nitro anisole
  • 4-methoxy-6-nitrobenzaldehyde
  • 2-formyl-5-methoxy nitrobenzene
59 g of an amide obtained from a carboxylic acid, RCOOH, liberated 17 g of ammonia upon heating with alkali. The acid is
  • Formic Acid
  • Acetic Acid
  • Propionic Acid
  • Benzoic Acid
In the Dumas method, the nitrogen present in organic compound gets converted to
  • Sodium Cyanide
  • Gaseoue Ammonia
  • Dinitrogen Gas
  • Ammonium Sulphate.
The compound
  • Bicyclo-[2, 2, 2] octane
  • Bicyclo-[2, 2, 1] octane
  • Bicyclo-[1, 2, 1] octane
  • Bicyclo-[1, 1, 1] octane
Which one of the following conformations of cyclohexane is chiral?
  • Twist boat
  • Rigid
  • Chair
  • Boat
If228 g of silver salt of dibasic acid gave a residue of162 g of silver on ignition then molecular weight of the acid is
  • 70
  • 80
  • 90
  • 100
If there is no rotation of plane polarized light by a compound in a specific solvent, thought to be chiral, it may mean that
  • The compound may be a racemic mixture
  • The compound is certainly a chiral
  • The compound is certainly meso
  • There is no compound in the solvent.
Which element is estimated by Carius method
  • Carbon
  • Hydrogen
  • Halogen
  • Nitrogen
Inductive effect involves
  • displacement of σ electrons
  • delocalization of π electrons
  • delocalization of σ-electrons
  • displacement of π-electrons
A crystalline solid possess which one of the following property?
  • Irregularity
  • Non- symmetric
  • Perfect geometric pattern
  • non- stability
Which of the following behaves both as a nucleophile and as an electrophile?
  • CH C ≡ N
  • CH OH
  • CH = CHCH
  • CH NH
0 h : 0 m : 1 s

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