Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET
Exam
NEET
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

NEET · Chemistry · General Principles and Processes of Isolation of Metals

Wrought iron is the purest form of iron.How can the impurities of...

Wrought iron is the purest form of iron.How can the impurities of sulfur, silicon and phosphorus be removed from cast iron?

Options

  1. ACast iron is heated to a high temperature to vaporize impurities.
  2. BCast iron is treated with strong acids to dissolve impurities.
  3. CLimestone is added as flux and sulfur, silicon and phosphorus change to their oxides and pass into the slag.
  4. DCast iron is alloyed with other metals to neutralize impurities.

Correct answer

C. Limestone is added as flux and sulfur, silicon and phosphorus change to their oxides and pass into the slag.

Step-by-step solution

Correct Option is : (C)
Limestone is added as flux and sulfur, silicon and phosphorus change to their oxides and pass into the slag.
Practice General Principles and Processes of Isolation of Metals on Quantrex Academy →

More from General Principles and Processes of Isolation of Metals

The reaction that does NOT takes place in blast furnace between 900K and 1500K… NEET 2023Read the following statements and choose the set of correct statements: (A) Chrome steel… NEET 2023Match List-I with List-II. List-I (Ores) List-II (Composition) (a) Haematite (i) Fe _ 3 O… NEET 2022Which one of the following methods can be used to obtain highly pure metal which is… NEET 2021The maximum temperature that can be achieved in blast furnace is: NEET 2021Identify the correct statement from the following: NEET 2020Match the elements in Column I with methods of purification in Column II. Column-I… NEET 2020Assertion : ZrI_4 is useful in purification of zirconium (Zr). Reason : ZrI_4 sublimise… AIIMS 2019 Full General Principles and Processes of Isolation of Metals list All NEET PYQs