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NTA Abhyas 2020

Exam: NTA Abhyas
Year: 2020
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals

Which of the following process involves smelting?

Which of the following process involves smelting?

Options

A $Zn{CO}_{3}\overset{\Delta}{→}ZnO + {CO}_{2}$
B ${Fe}_{2}{O}_{3} + 3C\overset{Heat}{→}2Fe + 3CO$
C $2PbS + 3{O}_{2}\overset{Heat}{→}2PbO + 2{SO}_{2}$
D ${Al}_{2}{O}_{3}. 2{H}_{2}O\overset{Heat}{→}{Al}_{2}{O}_{3} + 2{H}_{2}O$

Correct answer

B. ${Fe}_{2}{O}_{3} + 3C\overset{Heat}{→}2Fe + 3CO$

Step-by-step solution

We know that smelting is reduction with carbon. Here

{\text{Fe}_{2} {O}_{3}

with the help of carbon.

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