Class 9 Chemistry MCQs – Practice Test 7 (Chapter 3)

Fundamentals of Chemistry Quiz with Answers PDF – Test 7

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Fundamentals of Chemistry Quiz PDF Download – Test 7

MCQ 31: If one mole of carbon contains x atoms then the number of atoms in 12g of Mg are:

x
0.5x
2x
1.5x

MCQ 32: A science that examines the material this universe contains and changes in them is called:

Chemistry
Physics
Biology
Geography

MCQ 33: The molecular mass of glucose is:

180.096 amu
190.096 amu
181.096 amu
130.096 amu

MCQ 34: Negatively charged ions are called:

cations
anions
ion
none of above

MCQ 35: The number of atoms of hydrogen in 2 moles of NH₃:

5 * 10²³
3.01 * 10²³
3.61 * 10²⁴
4 * 10²³

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