ValencyPractice Questions & MCQs
Practice Valency questions from Atomic Foundations of Matter (Class 9 Science) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
ValencyQuiz - Solve & Score
Q1. Why is the valency of noble gases (full outer shell) zero?
- A.they neither gain, lose nor share electrons as their outer shell is complete
- B.they have no electrons at all
- C.they always lose 8 electrons
- D.they have only neutrons
Answer: A. they neither gain, lose nor share electrons as their outer shell is complete
Q2. Why is the valency of an element decided by its outermost electrons, not its neutrons?
- A.chemical combination involves only the outer (valence) electrons
- B.neutrons control bonding
- C.the nucleus shares in bonds
- D.inner electrons form bonds
Answer: A. chemical combination involves only the outer (valence) electrons
Q3. Why do elements in the same group of the periodic table often have the same valency?
- A.they have the same number of valence electrons
- B.they have the same number of neutrons
- C.they have the same mass
- D.they are in the same period
Answer: A. they have the same number of valence electrons
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Where can I practise Valency questions for Class 9 Science?
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Are these Valency questions important for the exam?
Yes. These Valency important questions follow the Science exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.
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Every Valency question on RankByte comes with the correct answer and a full step-by-step solution, so you learn the concept instead of just guessing.