MCQ
The $3^{rd}$ ionisation energy amongst $Li, Be, B$ and $C$ is lowest for
- A$Li$
- B$Be$
- ✓$B$
- D$C$
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Product "$A$" is :
$A_{2(g)} + B_{2(g)} \rightleftharpoons 2AB_{(g)}$
At equilibrium, the concentration of $A_2= 3.0 \times 10^{-3} \, M,$ of $B_2= 4.2 \times 10^{-3} \, M,$ of $AB= 2.8 \times 10^{-3} \, M,$
If the reaction takes place in a sealed vessel at $527^o C,$ then the value of $K_c$ will be