Write thermochemical equation for the following?
(i) Combustion of Benzene
(ii) Formation of Ethanal.

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Solution

Benzene burns in oxygen to form ${C O}_{2}$ and $H_{2} O$
$C_{6} H_{6} + \frac{15}{2} O_{2} \to 6 {C O}_{2} + 3 H_{2} O$
Acetalhyde or Ethanal - $C_{2} H_{4} O$ preparation method by oxidation of Ethanal.
${C H}_{3} {C H}_{2} O H_{2} {C H}_{3} C H O + H_{2}$

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