Which of the following elements is present as the impurity to the maximum extent in the pig iron?
- Carbon
- Silicon
- Phosphorus
- Manganese
The Correct Option is A
Solution and Explanation
Top Questions on General Principles and Processes of Isolation of Elements
- The de Broglie wavelength associated with the electrons accelerated by a potential of 81 V is lying in the region of electromagnetic waves:
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Questions Asked in NEET exam
- Match List I with List II
List-I
(Reaction)List-II
(Reagents/Condition)(A) 
(I) 
(B) 
(II) CrO3 (C) 
(III) KMnO4/KOH, \(\Delta\) (D) 
(IV) (i) O3
(ii) Zn-H2O
Choose the correct answer from the options given below:- NEET (UG) - 2024
- Chemical Reactions
If the monochromatic source in Young's double slit experiment is replaced by white light,
1. There will be a central dark fringe surrounded by a few coloured fringes
2. There will be a central bright white fringe surrounded by a few coloured fringes
3. All bright fringes will be of equal width
4. Interference pattern will disappear- NEET (UG) - 2024
- Youngs double slit experiment
- Arrange the following elements in increasing order of electronegativity:
N, O, F, C, Si
Choose the correct answer from the options given below:- NEET (UG) - 2024
- Modern Periodic Law And The Present Form Of The Periodic Table
- The work done during reversible isothermal expansion of one mole of hydrogen gas at 25oC from a pressure of 20 atm to 10 atm is:
(Given R = 2.0 cal K-1 mol-1)- NEET (UG) - 2024
- Gas laws
- A horizontal force 10 N is applied to a block 4 as shown in figure. The mass of blocks A and B are 2 kg and 3 kg, respectively. The blocks slide over a frictionless surface. The force exerted by block A on block B is:
- NEET (UG) - 2024
- Friction
Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal