Match the items in Column I with the items in Column II and assign the correct code.
Column I | Column II |
A. Coloured Bands | 1. Zone refining |
B. Impure metal to volatile complex | 2. Fractional distillation |
C. Purification of Ge and Si | 3. Mond’s process |
D. Purification of mercury | 4. Chromatography |
5. Liquation |
Codes
A | B | C | D | |
1. | 1 | 2 | 3 | 4 |
2. | 4 | 3 | 1 | 2 |
3. | 3 | 4 | 2 | 1 |
4. | 5 | 4 | 3 | 2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
The method of purification that is represented by the following equation is:
\(Ti(s) \ + \ 2I_{2}(g) \ \xrightarrow[]{523 \ K} \ TiI_{4}{g}\)
\(TiI_{4}(g)\ \xrightarrow[]{1700 \ K} \ Ti(s) \ + \ 2I_{2}(g)\)
1. Cupellation
2. Poling
3. Van Arkel
4. Zone refining
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the items in Column I with the items in Column II, and assign the correct code.
Column I | Column II |
A. Cyanide process | 1. Ultrapure Ge |
B. Froth flotation process | 2. Dressing of ZnS |
C. Electrolytic reduction | 3. Extraction of Al |
D. Zone refining | 4. Extraction of Au |
5. Purification of Ni |
Codes
A | B | C | D | |
1. | 4 | 2 | 3 | 1 |
2. | 2 | 3 | 1 | 5 |
3. | 1 | 2 | 3 | 4 |
4. | 3 | 4 | 5 | 1 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A): | Nickel can be purified by Mond’s process. |
Reason (R): | It is a volatile compound that decomposes at 460 K to give pure Ni. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A): | Zirconium can be purified by the van Arkel method. |
Reason (R): | ZrI4 is volatile and decomposes at 1800 K. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the process of extraction of silver,
silver ore +
[X] + Zn [Y] + Ag
[X], and [Y] in the above mentioned reaction are:
1. X= [Ag(CN)]; Y = [Zn(CN)]-2
2. X= [Ag(CN)]-3; Y=[Zn(CN)]-2
3. X= [Ag(CN)]; Y=[Zn(CN)]
4. X=[Ag(CN)] ; Y= [Zn(CN)]2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFrom the following, the correct statements about the role of substances added in the froth flotation process are:
a. | Collectors enhance the non-wettability of the mineral particles. |
b. | Collectors enhance the wettability of gangue particles. |
c. | By using depressants in the process, two sulphide ores can be separated. |
d. | Froth stabilisers decrease the wettability of gangue. |
1. a and b
2. b and c
3. c and d
4. a and c
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich metal can be purified by zone refining?
1. Ni
2. Zr
3. In
4. Fe
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe extraction of gold and silver involves leaching with CN- ion. Silver is later recovered by:
1. Liquation
2. Distillation
3. Zone refining
4. Displacement with Zn
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct match among the following is:
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 |
(a) | (b) | (c) | (d) | |
1. | (iv) | (iii) | (i) | (ii) |
2. | (iv) | (iii) | (ii) | (i) |
3. | (ii) | (i) | (iv) | (iii) |
4. | (iii) | (iv) | (i) | (ii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology