Chapter 3 Metals and Non-metals
Question : What is a metallic luster called?
Answer : The surface of the metal in pure form is shiny, this property of the metal is called metallic luster.
Question : What is the property of hardness of metals?
Answer : Hardness of each metal is different.
Question : How long a wire can be made from 1 gram of gold?
Answer : 2 kilometers long.
Question : Are metals a good conductor of heat or a bad conductor?
Answer : Good conductor
Question : Which metal is the best conductor of heat?
Answer : Silver and Copper
Question : Which metals are poor conductors of heat?
Answer : lead and mercury
Question : What is the full name of PVC?
Answer : The full name of PVC is Polyvinyl Chloride.
Question : Who is called phonics (sonorous)?
Answer : Metals, which produce sound when they strike a hard surface are called sonorous.
Question : Why are school bells made of metal?
Answer : Because metals have sonorous properties.
Question : Is a metal a good conductor of electricity or a bad conductor?
Answer : Good conductor.
Question : What is a metallic luster called?
Answer : The surface of a metal in pure form is shiny, this property of the metal is called metallic luster.
Question : What is the property of hardness of metals?
Answer : Hardness of each metal is different.
Question : What is a concussion?
Answer : Some metals can be beaten into thin sheets. This quality is called dharma virtuosity.
Question : What is ductility ?
Answer : The ability of a metal to form a thin wire on stretching is called ductility.
Question : Which is the most ductile metal?
Answer : Gold is the most ductile metal.