Assertion : Magnesium chloride is an ionic compound.Reason : Metals a...
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
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Assertion : Magnesium chloride is an ionic compound.Reason : Metals a...
Assertion: Magnesium chloride is an ionic compound.
Reason: Metals and non-metals react by mutual transfer of electrons.
The correct answer is option 'A': Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Explanation:
Definition of Ionic Compounds:
Ionic compounds are formed when there is a complete transfer of electrons from a metal atom to a non-metal atom, resulting in the formation of positively charged metal ions and negatively charged non-metal ions. These oppositely charged ions are held together by strong electrostatic forces, forming an ionic bond.
Explanation of the Assertion:
Magnesium chloride (MgCl2) is an ionic compound. It is composed of magnesium (Mg), a metal, and chlorine (Cl), a non-metal. In the formation of magnesium chloride, magnesium loses two electrons to achieve a stable electron configuration of the noble gas neon, forming Mg2+ ions. On the other hand, chlorine accepts one electron from each magnesium atom to achieve a stable electron configuration of the noble gas argon, forming Cl- ions. The electrostatic attraction between the Mg2+ and Cl- ions leads to the formation of the ionic compound magnesium chloride.
Explanation of the Reason:
Metals and non-metals react by mutual transfer of electrons. Metals tend to lose electrons and form positively charged ions (cations), while non-metals tend to gain electrons and form negatively charged ions (anions). This transfer of electrons occurs due to the difference in electronegativity between metals and non-metals. Metals have low electronegativity, meaning they have a tendency to lose electrons, while non-metals have high electronegativity, meaning they have a tendency to gain electrons. The transfer of electrons from a metal to a non-metal results in the formation of ionic compounds.
Conclusion:
The assertion that magnesium chloride is an ionic compound is true. The reason provided, which states that metals and non-metals react by mutual transfer of electrons, is also true and provides the correct explanation for the formation of ionic compounds. Therefore, option 'A' is the correct answer.
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