Valency MCQs
Practice Valency multiple-choice questions from Atomic Foundations of Matter (Class 9 Science) - tap an answer for instant feedback and a step-by-step solution. 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
Master Valency on RankByte
Step-by-step solutions, mock tests, live ranks and streaks - free to start.
Get early access