Question:
In the following reaction, the change in oxidation state of Magnesium is:
3Mg(s) + N2(g) → Mg3N2(s)
In the following reaction, the change in oxidation state of Magnesium is:
3Mg(s) + N2(g) → Mg3N2(s)
Show Hint
Group 2 elements (like Mg) almost always show a +2 oxidation state in their compounds.
Updated On: Apr 24, 2026
- 0 to +2
- 0 to +3
- 0 to +4
- 0 to +6
- 0 to -2
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Oxidation state (number) is the charge an atom would have if all bonds were completely ionic.
Step 2: Detailed Explanation:
In the reaction, \(Mg\) on the left side is in its elemental form. The oxidation state of any element in its free state is 0. In the product \(Mg_3N_2\), Magnesium is a metal and Nitrogen is a non-metal. The compound is ionic, consisting of Mg\(^{2+}\) and N\(^{3-}\) ions. The oxidation state of Magnesium in \(Mg_3N_2\) is +2. Therefore, the change is from 0 to +2.
Step 3: Final Answer:
The change in oxidation state of Magnesium is from 0 to +2.
Oxidation state (number) is the charge an atom would have if all bonds were completely ionic.
Step 2: Detailed Explanation:
In the reaction, \(Mg\) on the left side is in its elemental form. The oxidation state of any element in its free state is 0. In the product \(Mg_3N_2\), Magnesium is a metal and Nitrogen is a non-metal. The compound is ionic, consisting of Mg\(^{2+}\) and N\(^{3-}\) ions. The oxidation state of Magnesium in \(Mg_3N_2\) is +2. Therefore, the change is from 0 to +2.
Step 3: Final Answer:
The change in oxidation state of Magnesium is from 0 to +2.
Was this answer helpful?
0
0
Top KEAM Chemistry Questions
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
- $4\, g$ of copper was dissolved in concentrated nitric acid. The copper nitrate solution on strong heating gave $5\, g$ of its oxide. The equivalent weight of copper is :
- Green chemistry deals with
- Neopentyl bromide undergoes dehydrohalogenation to give alkenes even though it has no $\beta$- hydrogen. This is due to
- Plot of $ log\text{ }x/m $ against log $p$ is a straight line inclined at an angle of $ 45{}^\circ $ . When the pressure is $ 0.5 \,arm $ and Freundlich parameter. $ k $ is $ 10 $ , the amount of solute adsorbed per gram of adsorbent will be $ (log\text{ }5=0.6990) $
View More Questions
Top KEAM Oxidation Number And Oxidation States Questions
Top KEAM Questions
- i.$\quad$ They help in respiration ii.$\quad$ They help in cell wall formation iii.$\quad$ They help in DNA replication iv. $\quad$They increase surface area of plasma membrane Which of the following prokaryotic structures has all the above roles?
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- If $\int e^{2x}f' \left(x\right)dx =g \left(x\right)$, then $ \int\left(e^{2x}f\left(x\right) + e^{2x} f' \left(x\right)\right)dx =$
View More Questions