Class 10 Chemistry MCQs – Practice Test 9 (Chapter 5)

Chemical Industries MCQs with Answers PDF Download – Test 9

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Chemical Industries MCQs – Practice Test 9 PDF Download

MCQ 41: The process in which metal is separated from its ore and prepared for use is called:

metallurgy
mining
crushing
Solvay process

MCQ 42: Ore of zinc is called:

galena
zinc blende
cinnabar
chromite

MCQ 43: The boiling point of petrol is:

below 20 °C
170-120 °C
35-70 °C
270-340 °C

MCQ 44: Ore of tin is called:

galena
zinc blende
Cassiterite
silica

MCQ 45: The second step of metallurgy is:

crushing, grinding or pulverizing of the ore
concentration of the ore
extraction of metal
refining of metal

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