Q.1
Covalent compounds
  • Share electrons
  • transfer electrons
  • contain a sea of electrons
  • conduct electricity
Q.2
Which of the following statement is wrong?
  • The combining atomic orbitals must have same or nearly same energies
  • The extent of overlapping betwen the atomic orbitals of the two atoms shold be large
  • The combining atomic orbitals must have different energies
  • The combinig atomic orbitals must have the same symmetry
Q.3
What is a valence electron?
  • an electron that is found in the outermost shell of an atom.
  • an electron found in the innermost shell of an atom.
  • an electron found in the middle shell.
Q.4
What are isoelectronic species?
  • same number of electrons
  • same number of neutrons
  • same number of protons
  • All the above
Q.5
Which of the following has the highest boiling point?
  • HCl
  • CH3CH2CH2CH3
  • CCl4
  • NaCl
Q.6
What is the electron configuration of sodium?
  • 2.8
  • 2.8.2
  • 2.8.1
  • 11
Q.7
In which of the following substances will hydrogen bond be strongest?
  • HC
  • H2O
  • HI
  • H2S
Q.8
Ionic Bonding involves...
  • The transfer of protons
  • The transfer of nuetrons
  • The transfer of electrons
  • None Of the above
Q.9
Does CH4 have hydrogen bonding?
  • yes
  • no
Q.10
A valid Lewis structure of _______ cannot be drawn without violating the octet rule.
  • NF3
  • IF3
  • PF3
  • SbF3
Q.11
What is the VSEPR shape for CO2?
  • Linear
  • Trigonal planar
  • Bent
  • Trigonal pyramidal
Q.12
Which of the following is ionic?
  • NO2
  • MgO
  • CO
  • CH4
Q.13
What is the electron configuration of beryllium?
  • 2.2
  • 2.4
  • 4
  • 6
Q.14
Which element will have 5 electrons in its Lewis dot symbol?
  • Bromine
  • Nitrogen
  • Neon
  • Boron
Q.15
Why do atoms bond?
  • They typically don't bond
  • To add or take away energy levels
  • To have a full valence shell.
  • To have a full inner shell
Q.16
Write the singly bonded Lewis dot structure for BFWhich of the following statements best describes this structure?
  • It obeys the octet rule on all atoms.
  • It has less than an octet on at least one atom.
  • It has a lone pair of electrons on the boron atom.
  • It has less than an octet of electrons on all atoms.
Q.17
In which of the following species is the underlined carbon having Sp3 hybridisation?
  • CH3COOH
  • CH3CH2OH
  • CH3COCH3
  • CH2=CHCH3
Q.18
What is the name of the compound NO?
  • nitrogen dioxide
  • nitrogen monoxide
  • dinitrogen trioxide
Q.19
What is the basis of a metallic bond?
  • the attraction of neutral metal atoms.
  • the attraction between protons and neutrons.
  • the attraction between positive metal ions and interlocking electrons.
  • the attraction between positive metal ions and sea of delocalised electrons.
Q.20
Do ionic bonds share or transfer electrons?
  • Share
  • Transport
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