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4 January, 04:05

1. Which type of intermolecular attractive force operates between all molecules?

A. dipole-dipole forces

B. ion-dipole forces

C. London dispersion forces

D. hydrogen-bonding forces

2. Which type of intermolecular attractive force operates only between polar molecules?

A. dipole-dipole forces

B. ion-dipole forces

C. London dispersion forces

D. hydrogen-bonding forces

3. Which type of intermolecular attractive force operates only between the hydrogen atom of a polar bond and a nearby small electronegative atom?

A. dipole-dipole forces

B. ion-dipole forces

C. London dispersion forces

D. hydrogen-bonding forces

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Answers (2)
  1. 4 January, 06:19
    0
    1↔C 2↔A 3↔D

    Explanation:

    London dispersion forces are weak Vanderwal forces that exists between

    all molecules.

    Dipole-dipole forces operates between polar molecules because of the attraction between slightly developed opposite charges.

    Hydrogen-bonding is the strongest dipole-dipole interaction because of the largest electronegativity difference between hydrogen atom and the most electronegative atoms like F, O, N.
  2. 4 January, 06:31
    0
    1) C

    2) A

    3) D

    Explanation:

    London forces are common to all molecules, it results from momentary shifts in electron distribution in molecules. When molecules possess a permanent dipole, dipole-dipole interaction is the dominant intermolecular force. However, for compounds in which hydrogen is bonded to highly electronegative element, hydrogen bonding is important.
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