If, Kp = Kc× [RT]\(\bigtriangleup\)n,for the reaction 2CO2(g)+2CaCO3(s) –> 2CaC2(s)+5O2(g), what is \(\bigtriangleup\)n equal to?

CBSE CLASS XII Related Questions

  • 1.
    For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.


      • 2.
        Though chlorine shows strong $-I$ effect, why is it ortho/para directing?


          • 3.
            On hydrolysis, which of the following carbohydrates gives only $\mathrm{\beta}$-glucose ?

              • Starch
              • Sucrose
              • Maltose
              • Cellulose

            • 4.
              Out of Mn\(^{2+}\) and Zn\(^{2+}\), which ion will be more paramagnetic and why? (Atomic numbers: Mn = 25, Zn = 30)


                • 5.
                  Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.


                    • 6.
                      Why is o-nitrophenol more acidic than o-methoxyphenol?

                        CBSE CLASS XII Previous Year Papers

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