Chapter 3: Metals and Non-Metals — Online MCQ Test
SCIENCE · CLASS 10 · Andhra State Board
Practice Chapter 3: Metals and Non-Metals with a free chapter-wise online MCQ test.
This chapter covers: 1. Physical PropertiesMetals: Generally lustrous, malleable, ductile, sonorous, and good conductors of heat and electricity. Most are solids with high melting points.Non-Metals: Po....
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter 3: Metals and Non-Metals — Important Questions & Answers
Which of the following is a characteristic physical property of metals?
- A. Brittle and non-lustrous
- B. Malleable and ductile
- C. Poor conductor of electricity
- D. Exist only as gases at room temperature
Answer: B. Malleable and ductile
Metals are generally malleable (can be beaten into sheets) and ductile (can be drawn into wires), which are key physical properties.
Metals are generally malleable (can be beaten into sheets) and ductile (can be drawn into wires), which are key physical properties.
Which metal is in liquid state at room temperature?
- A. Sodium
- B. Mercury
- C. Aluminum
- D. Iron
Answer: B. Mercury
Mercury is a unique metal that exists as a liquid at room temperature, making it an important exception to the general rule.
Mercury is a unique metal that exists as a liquid at room temperature, making it an important exception to the general rule.
Which of the following oxides is amphoteric?
- A. Na₂O
- B. CaO
- C. Al₂O₃
- D. CO₂
Answer: C. Al₂O₃
Aluminum oxide (Al₂O₃) shows both acidic and basic properties, making it an amphoteric oxide.
Aluminum oxide (Al₂O₃) shows both acidic and basic properties, making it an amphoteric oxide.
Which of the following is NOT a method to prevent corrosion?
- A. Painting
- B. Galvanizing
- C. Heating in oxygen
- D. Oiling and greasing
Answer: C. Heating in oxygen
Heating in oxygen would accelerate corrosion, not prevent it. Painting, galvanizing, oiling, and greasing are actual corrosion prevention methods.
Heating in oxygen would accelerate corrosion, not prevent it. Painting, galvanizing, oiling, and greasing are actual corrosion prevention methods.
Consider the reactivity series: K > Na > Ca > Mg > Al > Zn > Fe > Pb > H > Cu > Ag > Au. Which of the following displacement reactions would NOT occur?
- A. Mg + CuSO₄ → MgSO₄ + Cu
- B. Fe + CuSO₄ → FeSO₄ + Cu
- C. Cu + FeSO₄ → CuSO₄ + Fe
- D. Zn + FeSO₄ → ZnSO₄ + Fe
Answer: C. Cu + FeSO₄ → CuSO₄ + Fe
Copper is less reactive than iron, so it cannot displace iron from its salt solution. The reaction would not occur.
Copper is less reactive than iron, so it cannot displace iron from its salt solution. The reaction would not occur.