MCQ
Inertness of ${N_2}$ gas is due to
  • A
    No vacant $d$ - orbital
  • High dissociation energy
  • C
    High electronegativity
  • D
    None

Answer

Correct option: B.
High dissociation energy
b
As the dissociation energy of $N _2$ is very high, it does not react with any molecule.

So, inertness of $N _2$ is due to high dissociation energy of $N _2$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

What volume of $CO_2$  at  $STP$  is obtained by thermal decomposition of  $20\, g\, KHCO_3$ ............. $\mathrm{L}$  [Atomic weight of $K = 39$ ] 

$2KHCO_3(s) \to K_2O(s) + 2CO_2(g) + H_2O(g)$ 

At $600\,K , 2\,mol$ of $NO$ are mixed with $1 mol$ of $O _{2}$.

$2 NO _{( g )}+ O _{2}( g ) \rightleftarrows 2 NO _{2}( g )$

The reaction occurring as above comes to equilibrium under a total pressure of 1 atom. Analysis of the system shows that $0.6 mol$ of oxygen are present at equilibrium. The equilibrium constant for the reaction is $.........$(Nearest integer).

The correct order of energy of absorption for the following metal complexes is

$A: \left[ Ni ( en )_{3}\right]^{2+}, B :\left[ Ni \left( NH _{3}\right)_{6}\right]^{2+}, C :\left[ Ni \left( H _{2} O \right)_{6}\right]^{2+}$

$\Delta_rG^o$ for the cell with the cell reaction :

$Zn_{(s)} +Cu^{+2}_{(aq)} \to Zn^{2+}_{(aq)} +Cu_{(s)}$

$[E^o_{Cu^{+2 /Cu}}  = 0.34\,V$ ,  $E^o_{Zn^{2+} /Zn} = -0.76\,V ]$

The electron affinity value are negative for :

$A$. $\mathrm{Be} \rightarrow \mathrm{Be}^{-}$

$B$. $\mathrm{N} \rightarrow \mathrm{N}^{-}$

$C$. $\mathrm{O} \rightarrow \mathrm{O}^{2-}$

$D$. $\mathrm{Na} \rightarrow \mathrm{Na}^{-}$

$E$. $\mathrm{Al} \rightarrow \mathrm{Al}^{-}$

Choose the most appropriate answer from the options given below :

Assertion: $CH_3COCl$ is converted to $CH_3CONH_2$ on reaction with $NH_3$.
Reason : $Cl$ is a stronger nucleophile and better leaving group
Ethyl alcohol is industrially prepared from ethylene by
Which of the following statements are incorrect?
A. All the transition metals except scandium form MO oxides which are ionic.
B. The lowest oxidation number corresponding to the group number in transition metal oxides is attained in $Sc _2 O _3$ to $MnO _7$
C. Acidic character increases from $V _2 O _3$ to $V _2 O _4$ to $V _2 O _5$.
D. $V _2 O _5$ dissolves in acids to give $VO _4{ }^{3-}$ salts
E. $CrO$ is amphoteric but $Cr _2 O _3$ is basic:
Choose the correct answer from the options given below:
Product $(B)$ is
Pick out from the following complex compounds, a poor electrolytic conductor in solution