Question:
Dinitrogen pentoxide $(N_2O_5)$, a colourless solid, is prepared by :
Dinitrogen pentoxide $(N_2O_5)$, a colourless solid, is prepared by :
Updated On: Jan 30, 2025
- heating $NH_4NO_2$ with an excess of oxygen
- dehydrating $HNO_3$ with $CaO$
- dehydrating $HNO_3$ with $P_4O_{10}$
- heating a mixture of $HNO_2$ and $Ca(NO_3)_2$
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The Correct Option is C
Solution and Explanation
Dinitrogen pentoxide is prepared by treating phosphorus pentoxide with nitric acid. Phosphoric acid is also produced in the process.
$P _{4} O _{10}+12 HNO _{3} \rightarrow 4 H _{3} PO _{4}+6 N _{2} O _{5}$
$P _{4} O _{10}+12 HNO _{3} \rightarrow 4 H _{3} PO _{4}+6 N _{2} O _{5}$
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
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