Question
Explain oxidizing and reducing agents with examples.

Answer

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Similar questions

  1. At 473K, equilibrium constant, K for decomposition of $PCl_5$ is $8.3 \times 10^{-3}$. If decomposition is depicted as
$\text{PCl}_5(\text{s})\rightleftharpoons\text{PCl}_3(\text{s})+\text{Cl}_2(\text{g});$
$\Delta_\text{r}\text{H}^\text{o}=124.0\text{kJ mol}^{-1}$
  1. Write an expression for $K_c$ for the reaction.
  2. What is the value of $K_c$ for the reverse reaction at same temperature.
  3. What would be the effect on $K_c$ if:
  1. The pressure is increased?
  2. The temperature is increased?
  1. Write equilibrium constant for the following reactions:
  1. $\text{BaCO}_3(\text{s})\rightleftharpoons\text{BaO(s)}+\text{CO}_2(\text{g})$
  2. $\text{CH}_4(\text{g})+2\text{O}_2(\text{g})\rightleftharpoons\text{CO}_2(\text{g})+2\text{H}_2\text{O(g)}$
S. No
Column I
Column II
1.
$Cl_2O$
+7
2.
$Cl_2O_7$
+4
3.
$ClO_2$
+1
4.
$Cl_2O_6$
+6
Define ionisation enthalpy. Discuss the factors affecting ionisation enthalpy of the elements and its trends in the periodic table.
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Complete the following equations for the reaction between
i. $\mathrm{Ca}+\mathrm{H}_2 \mathrm{O}$
ii. $\mathrm{Ca}(\mathrm{OH})_2+\mathrm{Cl}_2$
iii. $\mathrm{BeO}+\mathrm{NaOH}$
iv. $\mathrm{BaO}_2+\mathrm{H}_2 \mathrm{SO}_4$
The amount of energy released when one million of atoms of iodine in vapour state are converted to $I^{-}$ions is $4.9 \times$ $10^{-13}$ J according to the reaction:
$\mathrm{I}(\mathrm{~g})+\mathrm{e}^{-} \rightarrow \mathrm{I}^{-}(\mathrm{g})$
Express the electron gain enthalpy of iodine in terms of $\mathrm{kJ} \mathrm{mol}^{-1}$ and $\mathrm{eV}^{-2}$ per atom.
1. Describe the effect of
a. addition of $H _2$
b. addition of $CH _3 OH$
c. removal of CO
d. removal of $CH _3 OH$ on the equilibrium of the reaction,
$
2 H_2(g)+CO(g) \rightleftharpoons CH_3 OH(g)
$
2. What happens to an equilibrium in a reversible reaction if a catalyst is added to it?
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Describe two important uses of each of the following:
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  2. Sodium carbonate.
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