NEET 2016 Phase 1 | Processes of Isolation of Elements Question 11 | Chemistry

This chapter is currently out of syllabus

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

Out of Syllabus

Match items of Column I with the items of Column II and assign the correct code :

Column $${\rm I}$$		Column $${\rm I}$$$${\rm I}$$
(A)	Cyanide process	(i)	Ultrapure Ge
(B)	Froth floatation process	(ii)	Dressing of ZnS
(C)	Electrolytic reduction	(iii)	Extraction of Al
(D)	Zone refining	(iv)	Extraction of Au
		(v)	Purification of Ni

(A) $$ \to $$ (i); (B) $$ \to $$ (ii); (C) $$ \to $$ (iii); (D) $$ \to $$ (iv)

(A) $$ \to $$ (iii); (B) $$ \to $$ (iv); (C) $$ \to $$ (v); (D) $$ \to $$ (i)

(A) $$ \to $$ (iv); (B) $$ \to $$ (ii); (C) $$ \to $$ (iii); (D) $$ \to $$ (i)

(A) $$ \to $$ (ii); (B) $$ \to $$ (iii); (C) $$ \to $$ (i); (D) $$ \to $$ (v)

AIPMT 2015

MCQ (Single Correct Answer)

-1

Out of Syllabus

In the extraction of copper from its sulphide ore. the metal is finally obtained by the reduction of cuprous oxide with

carbon monoxide

copper (I) sulphide

sulphur dioxide

iron (II) sulphide.

AIPMT 2015 Cancelled Paper

MCQ (Single Correct Answer)

-1

Out of Syllabus

''Metals are usually not found as nitrates in their ores.'' Out of the following two (I and II) reasons which is/are true for the above observation?
I. Metal nitrates are highly unstable.
II. Metal nitrates are highly soluble in water.

I is false but II is true.

I is true but II is false.

I and II are true.

I and II are false

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Out of Syllabus

The metal oxide which cannot be reduced to metal by carbon is

Al₂O₃

PbO

ZnO

Fe₂O₃

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