alleryThe impurities such as soil, sand and rocky matter present along with the ore are called what?
AMineral
BOre
CGangue
DCation
Answer & Solution
Correct answer: C. Gangue
1. Ores contain the metal compound mixed with unwanted matter.
2. These impurities like soil, sand and rocky substances are termed gangue.
3. Removing the gangue is the step called concentration of ores.
4. The ore itself is the useful part, so 'ore' is not the impurity name.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.109_
Keep practising Unit 4B1: Properties of Metals and Non-Metals
Browse all Unit 4B1: Properties of Metals and Non-Metals questions for Maharashtra SSC (Class 10), or explore more Chemistry topics.
Related questions
Bronze, an alloy resistant to sun and rain, is made from which composition?An alloy in which one of the constituent metals is mercury is given which special name?In electroplating, what is coated onto a more reactive metal by electrolysis?In anodization of aluminium, the article is made the anode so that a protective layer of wDepositing a layer of molten tin on a metal surface, popularly called 'kalhaee', is known In galvanizing, why does the zinc layer corrode before the iron beneath it?In galvanizing, a thin layer of which metal is applied to protect iron or steel?Why can a layer of paint not protect an iron article from rusting permanently?