Chemistry 10th Class English Medium Unit 16 Online Test With Answers

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Chemistry 10th Class English Medium Unit 16 Online Test

Sr. # Questions Answers Choice
1 Which one of the not metal. Copper Carbon chromium Iron
2 Process of heating the concentrated ore to high temperature in excess of air is called. Roasting Smelting Bessemerization All
3 Red hair contains compound of. Iron copper titanium Molybdenum
4 Blonde hair contains compound of. Iron Copper titanium Molybdenum
5 Brown hair contains. Iron compound Copper compound titanium compound Both a and b
6 Which one of the ore of copper? Copper glance Chalcopyrite Both a and b None of these
7 At the time of partition, How many industries wee present in Pakistan. 30 32 34 40
8 Extraction of metals from its ores is called. Metallurgy Mining Griding All
9 Catalyst used in Haber's process is: Ni Fe Cu Zn
10 Manufacturing of urea involves: 2 steps 3 steps 4 steps 5 steps
11 Bister copper is pure about; 70% 80% 90% 98%
12 Chemical formula of matte will: Cu2S.FeS Cu2S Cu2O FeS
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