Materials: Metals and non-metals Worksheet-1

Materials: Metals and non-metals Worksheet-1

 

  1. The property of metals by which they can be beaten in to thin sheets is called-

A. malleability                               B. Ductility

C. conduction                                D. Expansion

 

  1. Which one of the following is metal?

A. C                     B. N                     C. Na                  D. O

 

  1. Which one of the following is non metal?

A. Zn                   B. Al                    C. Fe                   D. N

 

  1. All of the following show property of malleability expect _____.

A. Iron                                            B. Graphite

C. Aluminium                               D. Silver

 

  1. Which of the following is a good conductor of electricity?

A. Iron                B. Plastic           C. Wood             D. Glass

 

  1. The property of metal by which it can be drawn into wires is called _____.

A. Conductivity                             B. malleability

C. Ductility                                     D. Resistivity

 

  1. The metals that produce ringing sounds, are said to be-

A. Malleable     B. Sonorous      C. Lustrous       D. Ductile

 

  1. Which metal is found in liquid state at room temperature?

A. Fe                   B. Zn                   C. Hg                  D. Al

 

  1. Which of the following metal melts on palm of the hand?

A. Gallium                                      B. Cesium

C. Hg                                               D. Both Gallium and cesium

 

  1. The solution of ash of magnesium ribbon is-

A. Acidic                                         B. Basic

C. Neutral                                      D. All of these

 

Answer:

  1. A

 

  1. C

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.

 

  1. D

Explanation: Nitrogen is a non-metal. Zinc, Aluminium and iron are metals.

 

  1. B

Explanation: Graphite is a non metal and is therefore not malleable and ductile.

 

  1. A

Explanation: Iron is a metal hence it is a good conductor of electricity.

 

  1. C

Explanation: The property of metal by which it can be drawn into wires is called ductility.

 

  1. B

 

  1. C

 

  1. D

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.

 

  1. B

Explanation: Magnesium is a metal hence aqueous solution of its oxide will be basic in nature.