This chapter is currently out of syllabus
1
JEE Main 2021 (Online) 26th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Given below are two statements :

Statement I : The choice of reducing agents for metals extraction can be made by using Ellingham diagram, a plot of $$\Delta$$G vs temperature.

Statement II : The value of $$\Delta$$S increases from left to right in Ellingham diagram.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Both Statement I and Statement II are true
B
Statement I is false but Statement II is true
C
Both Statement I and Statement II are false
D
Statement I is true but Statement II is false
2
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one of the following set of elements can be detected using sodium fusion extract?
A
Sulfur, Nitrogen, Phosphorous, Halogens
B
Phosphorous, Oxygen, Nitrogen, Halogens
C
Nitrogen, Phosphorous, Carbon, Sulfur
D
Halogens, Nitrogen, Oxygen, Sulfur
3
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The addition of silica during the extraction of copper from its sulphide ore :-
A
converts copper sulphide into copper silicate
B
converts iron oxide into iron silicate
C
reduces copper sulphide into metallic copper
D
reduces the melting point of the reaction mixture
4
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The statement is incorrect about Ellingham diagram is
A
provides idea about the reaction rate.
B
provides idea about free energy change.
C
provides idea about changes in the phases during the reaction.
D
provides idea about reduction of metal oxide.
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12