This chapter is currently out of syllabus
1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which one is malachite from the following?
A
Fe3O4
B
CuCO3.Cu(OH)2
C
CuFeS2
D
Cu(OH)2
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Considering Ellingham diagram, which of the following metals can be used to reduce alumina?
A
Fe
B
Zn
C
Mg
D
Cu
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Extraction of gold and silver involves leaching with CN$$-$$ ion. Silver is later recovered by
A
distillation
B
zone refining
C
displacement with Zn
D
liquation
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
(A) $$ \to $$ (i);  (B) $$ \to $$ (ii);  (C) $$ \to $$ (iii);  (D) $$ \to $$ (iv)
B
(A) $$ \to $$ (iii);  (B) $$ \to $$ (iv);  (C) $$ \to $$ (v);  (D) $$ \to $$ (i)
C
(A) $$ \to $$ (iv);  (B) $$ \to $$ (ii);  (C) $$ \to $$ (iii);  (D) $$ \to $$ (i)
D
(A) $$ \to $$ (ii);  (B) $$ \to $$ (iii);  (C) $$ \to $$ (i);  (D) $$ \to $$ (v)
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