Chemistry Practice MCQ Page 9

Multiple Choice questions for Chemistry in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 1228   The attractive force that holds atoms together in molecules is called
  1. bond
  2. chemical bond
  3. force of attraction
  4. electrostatic force
Question: 1229   During the process of chemical bonding, atoms try to attain
  1. noble gas configuration
  2. stable configuration
  3. simple configuration
  4. unstable configuration
Question: 1230   The process of chemical reaction is due to involvement of
  1. outer electrons
  2. inner electrons
  3. deep electrons
  4. valance electrons
Question: 1231   By a chemical reaction systems attain an energy state which is
  1. higher in energy
  2. equal in energy
  3. balanced in energy
  4. lower in energy
Question: 1232   As a result of a chemical bonding the potential energy of the molecule formed is
  1. increased
  2. remains same
  3. decreased
  4. unchanged
Question: 1233   The potential energy of the approaching atoms increase if repulsive forces
  1. decrease
  2. remain un-changed
  3. become zero
  4. increase
Question: 1234   If a chemical bond in not formed, the potential energy of the atoms is
  1. increased
  2. remain same
  3. decreased
  4. un-changend
Question: 1235   When the potential energy of approaching atoms increases, repulsive forces also increase, the chemical bond is
  1. formed
  2. broken
  3. not formed
  4. un-changed
Question: 1236   When a chemical bond is formed the energy of two atoms will be
  1. maximum
  2. minimum
  3. usual
  4. normal
Question: 1237   When the potential energy of approaching atoms decreases, the attractive forces among atoms
  1. increase
  2. remain same
  3. decrease
  4. are un-changed
Question: 1238   If the internuclear distance of the atoms in a molecule is further reduced, their potential energy will
  1. decrease rapidly
  2. increase rapidly
  3. remain constant
  4. be un-changed
Question: 1239   The internuclear distance at which the energy of the two bonded atoms is at minimum is called
  1. bond length
  2. equilibrium distance
  3. equilibrium bond distance
  4. bond distance