JEE Main 2023 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 10 April 2023, Shift 1, Chemistry Q64

Question 64 of 90 in this shift, Chemistry question 4 of 30, Section A.

Which of the following is used as a stabilizer during the concentration of sulphide ores?

(1)Xanthates
(2)Pine oils
(3)CresolsOfficial answer
(4)Fatty acids

Official answer

Option 3

NTA final key.

Chapter: General Principles and Processes of Isolation of Elements
Topic: Adsorption
Idea tested: Adsorption in Froth Flotation

Same idea in other shifts

Asked 3× in all

26 Jun 2022, Shift 2 · Q64The role of depressants in 'Froth Floation method' is toMediumSingle correct
26 Aug 2021, Shift 2 · Q35Given below are two statements : Statement I : Sphalerite is a sulphide ore of zinc and copper glance is a sulphide ore of copper.…MediumTwo statements

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.