Which of the following reactions show the process of smeltin... | Chemistry | SolveeIt

Which of the following reactions show the process of smelting?

${2PbO + PbS ? 3Pb + SO_2}$

${ 2Na[Au(CN)_2] + Zn ? Na_2[Zn(CN)_4] +2Au}$

${PbO + C ? Pb + CO}$

${2HgS + 3O_2 ? 2HgO + 2SO_2}$

Answer

${PbO + C ? Pb + CO}$

Explanation

Smelting is the process of extraction of a metal by reduction of its oxide with carbon (in the form of coke, charcoal or carbon monoxide).

Chemistry Question on General Principles and Processes of Isolation of Elements