Native silver metal forms a water-soluble complex with a dilute aqueous solution of NaCN in the presence of:

1. Nitrogen

2. Oxygen

3. Carbon Dioxide

4. Argon

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Oxidation states of the metal in the minerals haematite and magnetite, respectively, are

(1) II, III in haematite and III in magnetite

(2) II, III in haematite and II in magnetite

(3) II in haematite and II, III in magnetite 

(4) III in haematite and II, III in magnetite 

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Extraction of metal from the ore cassiterite involves

(1) Carbon reduction of an oxide ore

(2) Self-reduction of a sulphide ore

(3) Removal of copper impurity

(4) Removal of iron impurity

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 56%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Iron is extracted from chalcopyrite as :

1. FeO
2. FeS
3. Fe2O3
4. FeSiO3

Subtopic:  Metallurgy of individual elements |
 55%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A metal's oxide that can be reduced by Fe as a reducing agent at a temperature T1 is:

1. Zr

2. Ca

3. Mg

4. None of the above.

Subtopic:  Ellingham Diagram |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the extraction processes listed in column I with metals listed in column II.

Column I

Column II

(1)    Self reduction

(p) Lead

(2)    Carbon reduction

(q) Silver

(3)    Complex formation and displacement by metal

(r) Copper

(4)    Decomposition of iodide

(s) Boron

A.  (1-p,r) (2-p) (3-q) (4-s)

B.  (2-p,r) (1-p) (3-q) (4-r)

C.  (1-q,r) (2-p) (4-q) (3-s)

D.  (1-p) (2-p,r) (3-q) (4-q)

Subtopic:  Refining Process |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the following choosing one item from column X and the appropriate item from column Y

Column X

Column Y

(1)    AI

(p) Calamine

(2)    Cu

(q) Cryolite

(3)    Mg

(r) Malachite

(4)    Zn

(s) Carnalite

1. 1-q, 2-s,3-r, 4p

2. 1-q, 2-r,3-s, 4p

3. 1-p, 2-r,3-s, 4q

4.1-r, 2-q,3-s, 4p

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

During the process of electrolytic refining of copper, metals that are present as impurities and settle as anode mud are :

1. Ag, and Au

2. Pb, and Zn 

3. Fe, and Ni 

4. Sn, and Ag

Subtopic:  Refining Process |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the elements in Column I with methods of purification in Column II.

     Column I       Column II

(a) Boron             (i) Van Arkel method

(b) Tin                 (ii) Mond's process

(c) Zirconium       (iii) Liquation

(d) Nickel            (iv) Zone refining

(1) (a)-(iv) (b)-(iii) (c)-(i) (d)-(ii)

(2) (a)-(iv) (b)-(iii) (c)-(ii) (d)-(i)

(3) (a)-(ii) (b)-(i) (c)-(iv) (d)-(iii)

(4) (a)-(iii) (b)-(iv) (c)-(i) (d)-(ii)

Subtopic:  Metallurgy of individual elements | Refining Process |
 73%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

What method is used to extract zinc from zinc blende?

1. Electrolytic reduction

2. Roasting followed by reduction with carbon

3. Roasting followed by reduction with another metal

4. Roasting followed by self-reduction

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh