Physical Properties of Metals and Non-metalsPractice Questions & MCQs
Practice Physical Properties of Metals and Non-metals questions from Metals and Non-metals (Class 10 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.
Physical Properties of Metals and Non-metalsQuiz - Solve & Score
Q1. Which property is shown by metals (NCERT)?
- A.brittleness
- B.dull appearance
- C.malleability
- D.being a poor conductor
Answer: C. malleability
The core fact here is - Metals are lustrous, malleable, ductile, conductors and lose electrons to form cations; non-metals are dull, brittle, insulators and gain electrons to form anions; matching the listed property to this dichotomy => only one option fits; hence answer = malleability. That fits the listed correct option directly - Correct. Quickly on the wrong ones: option A) 'brittleness' is wrong because Brittleness is a non-metal property; option B) 'dull appearance' is wrong because Metals are lustrous, not dull. Hence the answer is C) malleability.
Q2. Which property is shown by metals but generally NOT by non-metals?
- A.malleability
- B.being a poor conductor
- C.brittleness
- D.low density
Answer: A. malleability
Q3. Which non-metal is lustrous and is an exception to the dull appearance of non-metals?
- A.iodine
- B.carbon (as coal)
- C.phosphorus
- D.sulphur
Answer: A. iodine
NCERT fact (chemistry, chapter 'Metals and Non-metals'): An ionic bond forms when a metal donates electrons to a non-metal: e.g. Na -> Na+ + e-, Cl + e- -> Cl-, and Na+ + Cl- -> NaCl; the resulting solid is held by strong electrostatic attraction => this fixes the property asked in the stem; hence the answer = iodine. Why option A fits - Correct. Distractor analysis: option B) 'carbon (as coal)' doesn't hold - Coal is dull; iodine is the lustrous non-metal exception; option C) 'phosphorus' is incorrect: Phosphorus is non-lustrous. Final answer - A) iodine.
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