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Chemical Formulae and Equations Quiz Questions PDF p. 7

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Learn Chemical Formulae and Equations quiz questions and answers, O Level MCQ worksheets with answers key PDF to solve O Level Chemistry worksheet 7 for online classes. Learn chemical symbols MCQs, Chemical Formulae and Equations MCQ questions and answers for admission and merit scholarships test. "Chemical Formulae and Equations Quiz" PDF Download: chemical symbols, percent composition of elements career test for schools that offer online degrees.

"The formula of Hydrogen Carbonate ion is" Multiple Choice Questions (MCQ) on chemical formulae and equations with choices hco3, hco2, hco4, and h2co3 for SAT test prep classes. Learn chemical symbols quiz questions for jobs' assessment test and online courses for best online colleges for teaching degree.

Chemical Formulae & Equations Questions and Answers

1.

The formula of Hydrogen Carbonate ion is

HCO2
HCO3
HCO4
H2CO3

2.

In Na2CO3.10H2O, percentage of oxygen is

0.1678
0.1608
0.1659
0.1684

3.

The formula of aluminum sulfate indicates that for

each ion of Al, two ions of sulphate are required
each ion of Al, three ions of sulphate are required
two ions of Al, 3 ions of sulphate are required
two ions of Al, three ions of sulphate are required

4.

All of these ions have a valency of +2 except

Pb
Ca
Zn
NH4

5.

A water molecule will always contain

11% of oxygen and 89% of hydrogen
18% of oxygen and 88% of hydrogen
11.11% of oxygen and 88.89% of hydrogen
15% of oxygen

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