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Chemical Industries
The process of separating metal from ore is called
magnetic separation
floatation process
metallurgy
cyclone separation
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Chemical Industries
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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Chemical Industries
Which of the following is used as cylinder gas for cooking?
Liquefied petroleum gas (LPG)
petrol
naphtha
kerosene
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Chemical Industries
Number of carbon atoms per molecule in fuel oil is
14 to 20
20 to 50
50 to 70
70 to 90
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Chemical Industries
Process in which sodium carbonate is manufactured is called
calcination
metallurgy
Solvay process
carbonation
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Chemical Industries
Number of carbon atoms per molecule in LPG is
1 to 4
5 to 10
8 to 12
10 to 16
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Chemical Industries
The boiling point of fuel oil is
270 °C to 340 °C
350 °C to 500 °C
500 °C to 600 °C
more than 500 °C
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rikazzz
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Chemical Industries
Which of the following is used as a lubricant for machines and engines?
diesel
lubricating oil
fuel oil
bitumen
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Chemical Industries
Compounds which are added in the soil to provide essential elements to plants are called
carbonates
salts
fertilizers
metals
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Chemical Industries
The boiling point of diesel is
270 °C to 340 °C
350 °C to 500 °C
500 °C to 600 °C
more than 500 °C
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rikazzz
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