O Level Chemistry e-Book's MCQs - Complete
Properties: Bases and Reactions Quiz App Download & e-Book PDF - 55
Apps:
MCQ 55:
What is true about bases (OH-)?
- they are corrosive
- they turn litmus from blue to red
- they turn litmus from red to blue
- they are non-metal oxides
c
O Level Chemistry App & e-Book Tests PDF Download
Change of State Test 66
Valency and Chemical Formula Test 67
Electrical Devices and Circuit Symbols Test 68
Ionic and Covalent Substances Test 69
O level Chemistry and States of Matter Test 70
Acids and Properties and Reactions Test 71
Salts and Hydrogen of Acids Test 72
Methods of Purification and Sublimation Test 73
Strong and Weak Acids Test 74
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O Level Chemistry MCQs eBook Download
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