Question:
The pair of elements that form both oxides and nitrides, when burnt in air are
The pair of elements that form both oxides and nitrides, when burnt in air are
Show Hint
Highly reactive alkaline earth metals like magnesium and calcium can react with both oxygen and nitrogen present in air to form oxides and nitrides.
Updated On: Jun 22, 2026
- \(Na,\;Mg\)
- \(Na,\;Be\)
- \(Mg,\;Ca\)
- \(Be,\;Mn\)
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understand the reaction with air.
Air contains both oxygen and nitrogen. Some reactive metals react with both gases on heating and form oxides as well as nitrides.
Step 2: Examine magnesium and calcium.
Magnesium burns in air forming both magnesium oxide and magnesium nitride: \[ 2Mg+O_2\rightarrow2MgO \] \[ 3Mg+N_2\rightarrow Mg_3N_2 \] Similarly, calcium also forms oxide and nitride: \[ 2Ca+O_2\rightarrow2CaO \] \[ 3Ca+N_2\rightarrow Ca_3N_2 \]
Step 3: Analyze the other options.
Sodium mainly forms oxide/peroxide and does not readily form nitride on burning in air.
Beryllium does not easily react with nitrogen due to its protective oxide layer.
Manganese does not normally form nitride by direct burning in air.
Step 4: Final conclusion.
Hence, the correct pair is \[ \boxed{Mg,\;Ca} \]
Air contains both oxygen and nitrogen. Some reactive metals react with both gases on heating and form oxides as well as nitrides.
Step 2: Examine magnesium and calcium.
Magnesium burns in air forming both magnesium oxide and magnesium nitride: \[ 2Mg+O_2\rightarrow2MgO \] \[ 3Mg+N_2\rightarrow Mg_3N_2 \] Similarly, calcium also forms oxide and nitride: \[ 2Ca+O_2\rightarrow2CaO \] \[ 3Ca+N_2\rightarrow Ca_3N_2 \]
Step 3: Analyze the other options.
Sodium mainly forms oxide/peroxide and does not readily form nitride on burning in air.
Beryllium does not easily react with nitrogen due to its protective oxide layer.
Manganese does not normally form nitride by direct burning in air.
Step 4: Final conclusion.
Hence, the correct pair is \[ \boxed{Mg,\;Ca} \]
Was this answer helpful?
0
0
Top AP EAPCET Chemistry Questions
- The four quantum numbers of the valence electron of potassium are :
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
- In which of the following the election gain enthalpy of elements is correctly arranged?
- The radii of $ \text{F,}{{\text{F}}^{-}}\text{O} $ and $ {{\text{O}}^{2-}} $ are in the order
- Which of the following has the highest first ionization potential?
View More Questions
Top AP EAPCET GROUP 2 ELEMENTS Questions
Top AP EAPCET Questions
- A body is projected from the ground at an angle of $\tan^{-1} \left( \frac{8}{7}\right)$ with the horizontal. The ratio of the maximum height attained by it to its range is
- The four quantum numbers of the valence electron of potassium are :
- A lens forms real and virtual images of an object, when the object is at $u_{1}$ and $u_{2}$ distances respectively. If the size of the virtual image is double that of the real image, then the focal length of the lens is (take, the magnification of the real image as $m$ )
- Two spheres $P$ and $Q$, each of mass $200\, g$ are attached to a string of length one metre as shown in the figure. The string and the spheres are then whirled in a horizontal circle about $O$ at a constant angular speed. The ratio of the tension in the string between $P$ and $Q$ to that of between $P$ and $O$ is $(P$ is at mid-point of the line joining $O$ and $Q$ )
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
View More Questions