Question:
Extra pure $N_2$ can be obtained by heating
Extra pure $N_2$ can be obtained by heating
Updated On: Jun 14, 2022
- $NH_3$ with $CuO$
- $NH_4NO_3$
- $(NH_4 ),Cr_2 O_7$
- $Ba(N_3)_2$
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The Correct Option is D
Solution and Explanation
$Ba(N_3)_2 \xrightarrow{Heat} Ba(s) + 3N_2 (g )$
Azide salt of barium can be obtained in purest form as well as the decomposition product contain solid Ba as by product along with gaseous nitrogen, hence no additional step of separation is required. Other reactions are
$NH_4 NO_3 \xrightarrow{Heat} N_2 O+2H_2 O$
$2NH_3+3CuO \xrightarrow{Heat} 3Cu+3H_2O+N_2$
$(NH_4)_2 Cr_2 O_7 \xrightarrow{Heat} Cr_2 O_3+4H_2 O+N_2$
Azide salt of barium can be obtained in purest form as well as the decomposition product contain solid Ba as by product along with gaseous nitrogen, hence no additional step of separation is required. Other reactions are
$NH_4 NO_3 \xrightarrow{Heat} N_2 O+2H_2 O$
$2NH_3+3CuO \xrightarrow{Heat} 3Cu+3H_2O+N_2$
$(NH_4)_2 Cr_2 O_7 \xrightarrow{Heat} Cr_2 O_3+4H_2 O+N_2$
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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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- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family