Question

$C+2CuO\to X+Y$
The compound X and Y are:

• A. $C{O}_2,Cu$
• B. $CO,C{u}_{2}O$
• C. both A and B
• D. None of the above

Answer 1

The correct option is A $C{O}_2,Cu$

C and H are oxidized to $C{O}_2$ and $H_{2}O$ when heated with $CuO.$
$C{O}_2$ turns lime water milky and $H_{2}O$ turns anhydrous $CuS{O}_4$ to hydrated $CuS{O}_4$ which is blue in carbon.
$H+CuO\stackrel{△}{\to }{H}_{2}O+Cu$
$\underset{\text{White}}{CuS{O}_4}+5H_{2}O\to \underset{\text{Blue}}{CuS{O}_4.}5H_{2}O$