Materials : Metals and Non-Metal1. What are the physical properties of metals? 2. What happens when dilute sulphuric acid is poured on a copper plate?3. Explain why copper cannot displace zinc from its salt solution.4. Why sodium and potassium are stored in kerosene?5. Define displacement reaction with an example.6. Discuss about the chemical properties of metals.7. Write a note on the uses of metals and non metals. 8. Differentiate between Physical properties of Metals and Non Metals9. Give the reason behind using of Aluminium foils to wrap food items.10.Why immersion rods for heating liquids are made up of metallic substances?*RED COLORED ---- GIVEN IN EXAMMCQS

1. Metals react with acids to produce (a)N2 (b) CO2 (c) H2 (d)Cl2Answer: c2. Which of the following can be beaten into thin sheets?(a)Phosphorous (b) Zinc (c) Sulphur (d) OxygenAnswer: b3. Metals are(a)Ductile (b) Malleable (c) Amphoteric (d) Both a & bAnswer: d4. Metallic oxides are _________ in nature.(a)Acidic (b) Basic (c) Amphoteric (d) All Answer: b5. Which of the following metal is used in Thermometers?(a)Gold (b) Mercury (c) Aluminum (d) CopperAnswer: b6. Which of the following statements is correct?(a) All metals are ductile.(b) All non-metals are ductile.(c) Generally, metals are ductile.(d) Some non-metals are ductile.Answer: c7. Phosphorus is a very_________non-metal.(a)Reactive (b) Non reactive (c) Amphoteric (d) All Answer: a8. Iron is________reactive than copper.(a)Less (b) Non reactive (c) More (d) EquallyAnswer: c9. Metals aregood conductors of (a)Electricity (b) Heat (c) Light (d) Both a & bAnswer: d10. Copper cannot displace _________from zinc sulphate solution. (a)Zinc (b) Iron (c) Carbon (d) CopperAnswer: a11. Sodium is a ____________ metal (a)Nonreactive (b) Very reactive (c) Gaseous (d) LiquidAnswer: b12. Which cannot be drawn into wires?(a)Coal (b) Zinc (c) Iron (d) MagnesiumAnswer: aCoal and Petroleum1. Describe characteristics and uses of coke.2. Describe how coal is formed from dead vegetation. What is this process called?3. Explain the process of formation of petroleum.4. What are the advantages of using CNG and LPG as fuels?5. Explain why fossils fuels are exhaustible natural resources. 6. Name the petroleum product used for surfacing of roads.

MCQS1. Fossils fuels are (a)Coal (b) Petrol(c) Natural Gas (d) All the aboveAnswer: d2. Least polluting fuel for vehicles is(a)Tar (b) Kerosene (c) CNG (d) Crude OilAnswer: c3. Most purest form of carbon is (a)Coke (b) Tar (c) Petrol (d) KeroseneAnswer: a4. Process of separation of different constituents from petroleum is called(a)Refraction (b) Refining (c) Catenation (d) SolidificationAnswer: b5. CNG is__________ polluting fuel than petrol.(a)Less (b) Equally (c) More (d) NoneAnswer: a6. Coal tar is a (a) Metalloid (b) Mixture of various substances (c) Metal (d) GasAnswer: b7. Kerosene is a(a)Lipid (b) Non fossil fuel (c) Fossil fuel (d) MineralAnswer: c8. Fossil fuels are _________ natural resources(a) Inexhaustible b) Exhaustible (c) Nondegradable (d) MetallicAnswer: b9. CNG stands for(a) Combined neon gas (b) Compost neural gas (c) Colloidal neon gas (d) Compressed natural gasAnswer: d10. LPG means(a) Liquefied petroleum gas (b) Liquid pressure gas (c) Liquid polar gas(d) Both b & cAnswer: a