MCQ
On mixing tetraethyl lead to gasoline available at petrol pumps
- ACalorific value of the fuel increases
- BOdour diminishes
- CLess smoke is obtained on combustion
- ✓Antiknock property of fuel increases
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At the instant $3$ min, what change was imposed into the equilibrium ?

$2 A ( g ) \rightleftharpoons A _{2}( g )$
at $400\, K$ has $\Delta G ^{\circ}=+25.2\, kJ mol ^{-1}$.
The equilibrium constant $K _{ C }$ for this reaction is $...... \times 10^{-2}$. (Round off to the Nearest integ $\left[\right.$ Use $: R=8.3\, J mol ^{-1} K ^{-1}, \ln 10=2.3$
$\left.\log _{10} 2=0.30,1\, atm =1\, bar \right]$
$[$ antilog $(-0.3)=0.501]$