JEE Main 2021 (Online) 17th March Morning Shift | Isolation of Elements Question 63 | Chemistry

The point of intersection and sudden increase in the slope, in the diagram given below, respectively, indicates :

JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Isolation of Elements Question 63 English

JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Isolation of Elements Question 63 English

$$\Delta$$G > 0 and decomposition of the metal oxide

$$\Delta$$G < 0 and decomposition of the metal oxide

$$\Delta$$G = 0 and reduction of the metal oxide

$$\Delta$$G = 0 and melting or boiling point of the metal oxide

JEE Main 2021 (Online) 16th March Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

Which of the following reduction reaction CANNOT be carried out with coke?

ZnO $$ \to $$ Zn

Fe₂O₃ $$ \to $$ Fe

Cu₂O $$ \to $$ Cu

Al₂O₃ $$ \to $$ Al

JEE Main 2021 (Online) 16th March Morning Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

The process that involves the removal of sulphur from the ores is :

Roasting

Smelting

Leaching

Refining

JEE Main 2021 (Online) 26th February Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

Match List - I with List - II.

	List - I		List - II
(a)	Sodium Carbonate	(i)	Deacon
(b)	Titanium	(ii)	Castner-Kellner
(c)	Chlorine	(iii)	van-Arkel
(d)	Sodium hydroxide	(iv)	Solvay

Choose the correct answer from the options given below :

(a) $$ \to $$ (iv), (b) $$ \to $$ (iii), (c) $$ \to $$ (i), (d) $$ \to $$ (ii)

(a) $$ \to $$ (iv), (b) $$ \to $$ (i), (c) $$ \to $$ (ii), (d) $$ \to $$ (iii)

(a) $$ \to $$ (iii), (b) $$ \to $$ (ii), (c) $$ \to $$ (i), (d) $$ \to $$ (iv)

(a) $$ \to $$ (i), (b) $$ \to $$ (iii), (c) $$ \to $$ (iv), (d) $$ \to $$ (ii)

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