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MDCAT
Chemistry
2021

Chemistry · Chemical Bonding

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

When two atoms bonded to form a stable compound, the attractive forces will ______repulsive forces and the potential energy of the system will be _________ .

Options
  • A

    Recessive, higher

  • B

    Dominate, minimum

  • C

    Dominate, maximum

  • D

    Recessive, lower

Explanation

If the two atoms are bonded together the attractive force are dominant. Atoms become more stable with less potential energy when they form a covalent bond so the potential energy would be minimum.

This option is incorrect because the attractive forces are dominant, not recessive, and the potential energy is lower, not higher.

If the two atoms are bonded together the attractive force are dominant. Atoms become more stable with less potential energy when they form a covalent bond so the potential energy would be minimum. 

This option is incorrect because the potential energy is minimized when the attractive forces dominate, not maximised.

This option is incorrect because the attractive forces are dominant, not recessive, and the potential energy is minimized, not lower.

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Tagged under Chemistry · Chemical Bonding · 2021