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MHT CET202619 April 2026Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Which of the following is favourable condition for the formation of ionic bond ?

Options

  1. ALow ionization enthalpy of metal and low negative value of electron gain enthalpy of non metal.
  2. BLow ionization enthalpy of metal and high negative value of electron gain enthalpy of non metal.
  3. CHigh ionization enthalpy of metal and high negative value of electron gain enthalpy of non metal.
  4. DHigh ionization enthalpy of metal and low negative value of electron gain enthalpy of non metal.

Correct answer

B. Low ionization enthalpy of metal and high negative value of electron gain enthalpy of non metal.

Step-by-step solution

The formation of an ionic bond involves the transfer of electrons from a metal atom to a non-metal atom. The metal atom loses an electron to form a cation. This process requires energy, which is the ionization enthalpy. A lower ionization enthalpy means the metal can easily lose its valence electrons, favoring cation formation. The non-metal atom gains an electron to form an anion. This process releases energy, which is measured as the electron gain enthalpy. A high negative value of electron gain enthalpy indicate

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