MCQ
The oxidation state of each oxygen atom in $N{a_2}{O_2}$ is
- A$-2$ each
- B$-2$ and zero
- ✓$-1$ each
- DNone of the above
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(Enthalpy of neutralisation $=57 \;kJ \;mol ^{-1}$ and Specific heat of water $=4.2\; JK ^{-1} g ^{-1}$ ) (Neglect heat capacity of flask)
${K_p} = 8 \times {10^{ - 2}}$$C{O_{2(g)}} + {C_{(s)}} \to 2C{O_{(g)}}$ ; ${K_p} = 2$
$CaC{{O}_{3(s)}}\xrightarrow{\Delta }Ca{{O}_{(s)}}+C{{O}_{2}}\uparrow $; ${{K}_{p}}=8\times {{10}^{-2}}$