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Question

An ionic bond is present in which of the following species:


A

Sodium Bromide

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B

Sulfur Trioxide

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C

Hydrogen Chloride

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D

Carbon Monoxide

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Solution

The correct option is A

Sodium Bromide


Explanation for Correct Option:

Option (A): Sodium Bromide

  • An ionic bond is defined as the attractive electrostatic force that is present between two oppositely charged ions.
  • The formation of an ionic bond occurs when excess electrons from an anion are transferred to a cation in order to attain their nearest inert gas configuration.
  • In Sodium bromide NaBr the cation is Na+ and the anion is Br-.
  • Hence, they have oppositely charged ions that form an ionic bond through electrostatic force of attraction.

Explanation for Incorrect Option:

Option (C) Hydrogen Chloride

  • In, Hydrogen chlorideHCl, the Hydrogen atom shares its 1 electron with Chlorine, and thus forms a covalent bond.
  • Hence, they do not form ionic bonds.

Option (B): Sulfur Trioxide

  • In Sulfur trioxide SO3 both Sulphur and Oxygen form a covalent bond.
  • Hence, they do not form ionic bonds.

Difference Between SO2 and SO3 | Definition, Chemical Structure and  Properties, Differences

Option (D): Carbon Monoxide

  • In Carbon monoxide CO both Carbon and Oxygen form a covalent bond,
  • Hence, they do not form ionic bonds.

Therefore, an ionic bond is present in which of the following species option (A): Sodium BromideNaBr


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