Materials: Metals and non-metals Worksheet-1
A. malleability B. Ductility
C. conduction D. Expansion
A. C B. N C. Na D. O
A. Zn B. Al C. Fe D. N
A. Iron B. Graphite
C. Aluminium D. Silver
A. Iron B. Plastic C. Wood D. Glass
A. Conductivity B. malleability
C. Ductility D. Resistivity
A. Malleable B. Sonorous C. Lustrous D. Ductile
A. Fe B. Zn C. Hg D. Al
A. Gallium B. Cesium
C. Hg D. Both Gallium and cesium
A. Acidic B. Basic
C. Neutral D. All of these
Explanation: Sodium is a metal. It is a soft metal which can be cut by knife. It is highly reactive and so is kept in kerosene.
Explanation: Nitrogen is a non-metal. Zinc, Aluminium and iron are metals.
Explanation: Graphite is a non metal and is therefore not malleable and ductile.
Explanation: Iron is a metal hence it is a good conductor of electricity.
Explanation: The property of metal by which it can be drawn into wires is called ductility.
Explanation: Gallium is a low melting solid which melts at 29.8 ºC and Cesium melts at 28.5 ºC. So both will melt on palm of hand. Mercury exists in liquid state at room temperature.
Explanation: Magnesium is a metal hence aqueous solution of its oxide will be basic in nature.