The reaction involves Zn-Hg and HCl, which is known as the Clemmensen reduction. Clemmensen reduction is typically used to reduce carbonyl groups (like aldehydes and ketones) to methylene (-CH2-) groups.
The starting compound likely has a carbonyl (C=O) group. In the presence of Zn-Hg and HCl, the carbonyl group will be reduced to a -CH2- group.
Based on the Clemmensen reduction, the product will have the carbonyl group replaced by a methylene (-CH2-) group. Among the given options, Option (4) represents the structure where the carbonyl group has been reduced to a -CH2- group.
The correct product of the reaction is represented by Option (4).
Consider the gas phase reaction: \[ CO + \frac{1}{2} O_2 \rightleftharpoons CO_2 \] At equilibrium for a particular temperature, the partial pressures of \( CO \), \( O_2 \), and \( CO_2 \) are found to be \( 10^{-6} \, {atm} \), \( 10^{-6} \, {atm} \), and \( 16 \, {atm} \), respectively. The equilibrium constant for the reaction is ......... \( \times 10^{10} \) (rounded off to one decimal place).
Molten steel at 1900 K having dissolved hydrogen needs to be vacuum degassed. The equilibrium partial pressure of hydrogen to be maintained to achieve 1 ppm (mass basis) of dissolved hydrogen is ......... Torr (rounded off to two decimal places). Given: For the hydrogen dissolution reaction in molten steel \( \left( \frac{1}{2} {H}_2(g) = [{H}] \right) \), the equilibrium constant (expressed in terms of ppm of dissolved H) is: \[ \log_{10} K_{eq} = \frac{1900}{T} + 2.4 \] 1 atm = 760 Torr.