Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

JEE Main 20198 AprilEvening Shift

Exam: JEE Main
Year: 2019
Date: 8 April
Shift: Evening Shift
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

JEE Main 2019 · 8 April · Evening Shift · Chemistry · General Principles and Processes of Isolation of Metals

The Mond process is used for the:

The Mond process is used for the:

Options

APurification of $Zr$ and $Ti$
BPurification of $Ni$
CExtraction of $Zn$
DExtraction of $Mo$

Correct answer

B. Purification of $Ni$

Step-by-step solution

Mond's Process: In this process, nickel is heated in a stream of carbon monoxide forming a volatile complex, nickel tetracarbonyl:

$Ni\left(s\right) + 4CO\left(g\right)\overset{330 - 350K}{\to}Ni{\left(CO\right)}_{4}\left(g\right)$

The carbonyl is subjected to a higher temperature so that it is decomposed giving the pure metal:

$Ni{\left(CO\right)}_{4}\overset{450 - 470K}{\to}Ni + 4CO$

Practice General Principles and Processes of Isolation of Metals on Quantrex Academy →

More from General Principles and Processes of Isolation of Metals

Identify the incorrect pair from the following : JEE Main 2024 The correct statement(s) related to processes involved in the extraction of metals is(are) JEE Advanced 2023 Which one of the following is not an example of calcination? JEE Main 2023 Given below are two statements related to Ellingham diagram : Statement I : Ellingham… JEE Main 2023 Which one of the following is most likely a mismatch? JEE Main 2023 Given below are two statements: one is labelled as Assertion A and the other is labelled… JEE Main 2023 Given below are two statements: Statement I: In the metallurgy process,sulphide ore is… JEE Main 2023 In the extraction process of copper, the product obtained after carrying out the… JEE Main 2023 Full General Principles and Processes of Isolation of Metals list All JEE Main PYQs