Metallurgical process — task. Science State Board, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Choose the best answer:

1. Metallurgy based on __________.

all the above
physical and chemical properties and structural arrangement
physical and chemical properties and atomic structural arrangement
physical and chemical properties and element structural arrangement

2. Concentration or separation of the ore is the process of __________.

non-metal purification process
all the above
removing impurities from the ore
converting ore into metal

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