Class 9 Chemistry Competitive Exam MCQs – Practice Test 5 (Chapter 3)

Fundamentals of Chemistry MCQs with Answers PDF Download – Test 5

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The MCQ: Compounds have atoms of; "Class 9 Chemistry" App Download [Free] with answers: different sizes, same sizes, same electrons, and different electrons for high school certification courses. Solve Elements and Compounds Particles MCQ Questions, download Google e-Book (Free Chapter) for online teaching certification programs.

Fundamentals of Chemistry MCQs – Practice Test 5 PDF Download

MCQ 21: Compounds have atoms of:

same sizes
different sizes
same electrons
different electrons

MCQ 22: An oxide ion has -2 charge because:

oxygen looses two electrons
oxygen gains two electrons
oxygen becomes neutral
oxygen gains 3 electrons

MCQ 23: Which of the following is present in vinegar?

10% acetic acid
5%acetic acid
7% acetic acid
8% acetic acid

MCQ 24: The molecular formula gives:

simplest ratio of atoms
actual whole number ratio of atoms
whole number ratio of atoms
natural number ratio of atoms

MCQ 25: 6.022 * 10²³ atoms of Sulphur contains:

2 moles
3 moles
4 moles
1 mole

Fundamentals of Chemistry MCQs App & e-Book – Class 9 Chemistry Competitive Exam

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Fundamentals of Chemistry MCQs

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