Class 10 Chemistry Certification MCQs – Practice Test 3 (Chapter 5)

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MCQ 11: Ore of chromium is called:

galena
zinc blende
cinnabar
chromite

MCQ 12: Which of the following is used as a fuel for power stations, factories, and ships?

diesel
lubricating oil
fuel oil
bitumen

MCQ 13: Which of the following is used as a fuel for buses, trucks, and trains?

diesel
lubricating oil
fuel oil
bitumen

MCQ 14: The percentage of nitrogen (N) in urea (CH₄N₂O) is:

0.5
0.466
0.4
0.2

MCQ 15: Metallic compounds that occur naturally are called:

metal oxides
minerals
ores
none of above

Class 10 Chemistry Quiz App & e-Book – Chemical Industries Certification Guide

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