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Class -8, Subject-Science ( Chemistry), Chapter-4 ( Metals and Non- metals), Test-1, Choose the correct answer., Q1. Which of the following is/are metal/metals?, A. Copper, B. Iron, C. Aluminium, D. Sodium, E. All of the above, Q2. Which of the following is/are non- metal/metals?, A. Hydrogen, B. Nitrogen, C. Sulphur, D. Phosphorus, E. All of the above, Q3. Which of the following are the physical properties of metals?, i., ii., Metals are generally good conductors of heat and electricity, Metals are generally hard., Metals are generally sonorous, Ilustrous, malleable and ductile., Metals are generally solid at room temperature., iii., iv., A. i, and ii., B. , ii and i, C. .,i, ili and iv, D. i, and iv, Q4. Which of the following are the physical properties of non-metals?, Non-metals are generally bad conductors of heat and electricity, Non -metals are generally soft., Non- metals are generally non-sonorous, non- malleable non- ductile and non, v., vi., vii., lustrous., viii., Non -metals are brittle and can be in the form of solid, liquid or gas., A. i, and ii., B. i, ii and iii, C. ,i, ill and iv, D. i, and iv, Q5. Which of the following metals are soft in nature?

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A. Sodium, B. Potassium, C. Both of them., D. None of them., Q6. Which of the following metals are liquid at room temperature?, A. Mercury, B. Gallium, C. Both of them., D. None of them., Q7.. Which of the following metals are not malleable and ductile?, A. Zinc, B. Arsenic, C. Antimony, D. All of the above, Q8. Which of the following non-metal is a good conductor of heat and electricity?, A. Graphite, B. Diamond, C. Hydrogen, D. Nitrogen, Q9. Which of the following non-metal is hard though non-metals are generally not hard?, A. Graphite, B. Diamond, C. Hydrogen, D. Nitrogen, Q10. Which of the following non-metals are lustrous in nature?, A. Graphite, B. lodine, C. Both of them., D. None of them.