A large number of impurities present in ore, such as sand, soil, etc., is called
Gangue
The correct answer is option 2 i.e. Gangue.
Gangue refers to the unwanted or impure materials present in ore, such as sand, soil, and other minerals, which must be separated during the extraction of metals. These impurities reduce the quality of the metal extracted, and processes like frosting, flotation, or magnetic separation are used to remove them.
Other Options Explained:
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Hardness of ore: Refers to the resistance of ore to physical wear, not impurities.
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Spongy: Refers to the texture of materials, not impurities.
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Wrought: Describes metals that have been shaped by hammering or rolling, not impurities.
Similar Questions
Which of the following metals CANNOT be cut with a knife?
Which of the following will be formed when dilute hydrochloric acid is added to a beaker having copper oxide ?
Which of the following statement is incorrect regarding metals?
Which of the following metals are mixed with iron to get stainless steel?
Which of the following metals is more reactive towards dilute hydrochloric acid?
- Which of the following metals does NOT react with cold or hot water?
- Metal oxides which react with acids as well as bases are called:
- Which of the following metals is found in free state?
Important Questions from Metals & Non-metals
Due to improper/indiscriminate disposal of hold and used computers or their parts, which of the following are released into the environment as e-waste?
1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium
Select the correct answer using the codes given below:
Recently, there has been a concern over the short supply of a group of elements called 'rare earth metals'. Why?
1. China, which is the largest producer of these elements, has imposed some restrictions on their export.
2. Other than China, Australia, Canada and Chile, these elements are not found in any country.
3. Rare earth metals are essential for the manufacture of various kinds of electronic items and there is a growing demand for these elements.
Which of the statements given above is/are correct?
Which of the following metals CANNOT be cut with a knife?
Which of the following will be formed when dilute hydrochloric acid is added to a beaker having copper oxide ?
Which of the following statement is incorrect regarding metals?
