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MCQs

Total Questions : 228 | Page 19 of 23 pages
Question 181. Intermolecular forces include
  1.    van der Waal's forces
  2.    permanent dipole-dipole forces
  3.    hydrogen bonds
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 182. Compound that is electron (e⁻) deficient is
  1.    Al₂Cl₆
  2.    AlBF₃
  3.    SF₆
  4.    BF₃
 Discuss Question
Answer: Option D. -> BF₃
Answer: (d).BF₃
Question 183. Sharing of outer electrons (e⁻) forms
  1.    ionic bonds
  2.    covalent bonds
  3.    metallic bonding
  4.    Co-ordinate bonding
 Discuss Question
Answer: Option B. -> covalent bonds
Answer: (b).covalent bonds
Question 184. In Calcium chloride (CaCl₂), chloride (Cl⁻) gains
  1.    one electron
  2.    two electrons
  3.    three electrons
  4.    four electrons
 Discuss Question
Answer: Option B. -> two electrons
Answer: (b).two electrons
Question 185. In order to form an oxygen molecule (O₂), the number of electrons (e⁻) needed to complete the outermost shell are
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 186. The force of repulsion between electron pairs causes to remove electron with less
  1.    heat
  2.    energy
  3.    light
  4.    electric path
 Discuss Question
Answer: Option B. -> energy
Answer: (b).energy
Question 187. The force of attraction between nucleus and electrons increases across periods because
  1.    nuclear charge increases
  2.    distance remains constant
  3.    shielding effect constant
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 188. The electronic configuration is evident by the successive
  1.    ionization energies
  2.    polarity
  3.    electronegativity
  4.    shielding effect
 Discuss Question
Answer: Option A. -> ionization energies
Answer: (a).ionization energies
Question 189. There is less attraction between the fifth electron of Boron and nucleus, hence that electron resides in
  1.    1s
  2.    2p
  3.    3s
  4.    4d
 Discuss Question
Answer: Option B. -> 2p
Answer: (b).2p
Question 190. The electronic configuration of electrons involves their addition starting from lowest energy level to
  1.    highest energy level
  2.    adjacent high energy levels
  3.    closer to nucleus
  4.    closer to protons
 Discuss Question
Answer: Option B. -> adjacent high energy levels
Answer: (b).adjacent high energy levels

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