Class 10 Chemistry MCQs – Practice Test 7 (Chapter 5)

Chemical Industries Quiz with Answers PDF Download – Test 7

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Chemical Industries Quiz – Practice Test 7 PDF Download

MCQ 31: Which of the following is used as a lubricant for machines and engines?

diesel
lubricating oil
fuel oil
bitumen

MCQ 32: Ore of lead is called

galena
zinc blende
cinnabar
chromite

MCQ 33: Number of carbon atoms per molecule in LPG is

1 to 4
5 to 10
8 to 12
10 to 16

MCQ 34: The last step of the Solvay process is

preparation of ammonical brine
carbonation
preparation of carbon dioxide and slaked lime
recovery of ammonia

MCQ 35: The boiling point of LPG is

below 20 °C
35 °C to 70 °C
70 °C to 120 °C
170 °C to 250 °C

Chemical Industries Quiz App & e-Book – Class 10 Chemistry Study Material

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