List- I (ores) | List- II (Composition) |
(a) Haematite | \(Fe_3O_4\) | (i)
(b) Magnetite | \(ZnCO_3\) | (ii)
(c) Calamine | \(Fe_2O_3\) | (iii)
(d) Kaolinite | \([Al_2(OH)_4Si_2O_5]\) | (iv)
(a) | (b) | (c) | (d) | |
1. | (i) | (iii) | (ii) | (iv) |
2. | (i) | (ii) | (iii) | (iv) |
3. | (iii) | (i) | (ii) | (iv) |
4. | (iii) | (i) | (iv) | (ii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one is a malachite from the following?
1. CuCO3.Cu(OH)2
2. CuFeS2
3. Cu(OH)2
4. Fe3O4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify the incorrect statement:
1. | The scientific and technological process used for isolation of the metal from its ore is known as metallurgy |
2. | Minerals are naturally occurring chemical substances in the earth's crust |
3. | Ores are minerals that may contain a metal |
4. | Gangue is an ore contaminated with undesired materials |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyExtraction of gold and silver involves leaching with CN- ion. Silver is later recovered by:
1. Distillation
2. Zone refining
3. Displacement with Zn
4. Liquation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch items of Column I with the items of Column II and assign the correct code.
Column I | Column II |
A) Cyanide process | 1) Ultra pure Ge |
B) Froth floatation Process |
2) Dressing of ZnS |
C) Electrolytic | 3) Extraction of Al Reduction |
D) Zone refining | 4) Extracting of Au |
A | B | C | D | |
1. | 2 | 3 | 1 | 4 |
2. | 1 | 2 | 3 | 4 |
3. | 3 | 4 | 2 | 1 |
4. | 4 | 2 | 3 | 1 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRoasting of sulphides gives the gas X as a by-product. This is a colourless gas with a choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic and acts as an oxidizing agent and its acid has never been isolated. The gas X is:
1. SO2
2. CO2
3. SO3
4. H2S
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAluminium is extracted from alumina Al2O3 by electrolysis of a molten mixture of:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is a mineral of iron?
1. Malachite
2. Cassiterite
3. Pyrolusite
4. Magnetite
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following elements is present as an impurity to the maximum extent in the pig Iron?
1. Carbon
2. Silicon
3. Phosphorus
4. Manganese
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology