The bond length between hybridised carbon atom and other carbon atom is minimum in
  • Propane
  • Butane
  • Propene
  • Propyne
The number of nodal planes present in s × s antibonding orbitals is
  • 1
  • 2
  • 0
  • 3
The hybrid state of sulphur in SO
  • sp²
  • sp³
  • sp
  • sp³d
Which one of the following does not have sp² hybridised carbon?
  • Acetone
  • Acetic acid
  • Acetonitrile
  • Acetamide
Which of the following will have the lowest boiling point?
  • 2-MethylButane
  • 2-MethylPropane
  • 2,2-Dimethylpropane
  • n-Pentane
Among the following the maximum covalent character is shown by the compound
  • MgCl
  • FeCl
  • SnCl
  • AlCl
Among the following mixtures, dipole-dipole as the major interaction, is present in
  • benzene and ethanol
  • acetonitrile and acetone
  • KCl and water
  • benzene and carbon tetrachloride
The value of n in the molecular formula Be Al Si O is
  • 3
  • 5
  • 7
  • 9
Which of the following types of hybridisation leads to three dimensional geometry of bonds around the carbon atom?
  • sp
  • sp²
  • sp³
  • None of these
The maximum number of hydrogen bonds that a molecule of water can have is
  • 1
  • 2
  • 3
  • 4
The number of types of bonds between two carbon atoms in calcium carbide is
  • Two sigma, two pi
  • One sigma, two pi
  • One sigma, one pi
  • Two sigma, one pi
Based on lattice enthalpy and other considerations which one the following alkali metals chlorides is expected to have the higher melting point?
  • RbCl
  • KCl
  • NaCl
  • LiCl
Dipole-induced dipole interactions are present in which of the following pairs?
  • H
  • Cl
  • HCl and He atoms
  • SiF
The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizing order of the polarizing power of the cationic species, K, Ca, Mg, Be?
  • Ca< Mg< Be< K
  • Mg< Be< K< Ca
  • Be< K< Ca< Mg
  • K< Ca< Mg< Be
The species having pyramidal shape is
  • SO3
  • BrF3
  • SiO32-
  • OSF2
The structure of IF
  • Pentagonal bipyramid
  • Square pyramid
  • Trigonal bipyramid
  • Octahedral
The outer orbitals of C in ethene molecule can be considered to be hybridized to give three equivalent sp² orbitals. The total number of sigma (s) and pi (p) bonds in ethene molecule is
  • 1 sigma (s) and 2 pi (p) bonds
  • 3 sigma (s) and 2 pi (p) bonds
  • 4 sigma (s) and 1 pi (p) bonds
  • 5 sigma (s) and 1 pi (p) bonds
Which of the following is a linear molecule?
  • ClO
  • CO
  • NO
  • SO
0 h : 0 m : 1 s

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