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NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals
NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals NCERT Solutions for Class 10 Science Chapter 3: Metals and Non-metals NCERT Questions Question 1 Give an example of a metal which: (a) is a liquid at room temperature (b) can be easily cut with a knife (c) is the best conductor of heat (d) is the poorest conductor of heat. Show Answer Answer: (a) Mercury (b) Sodium (c) Silver / Copper (d) Lead / Mercury Question 2 Explain the meaning of malleable and ductile. Show Answer Answer: Malleable: The property due to which a substance can be beaten into thin sheets is known as malleability. For example, gold and silver. Ductile: The property due to which a substance can be drawn into thin wires is known as ductility. Many metals are ductile in nature. For example, gold and silver. Question 3 Why is sodium kept immersed in kerosene oil? Show Answer Answer: It is a highly reactive metal. Sodium reacts both with air and water. When kept in open, it readily combines with the oxygen present in air to for…