Class 8 Metals Non-Metals
Chapter 4
- Multiple Choice Questions (MCQs)
- Whose reactivity is highest amongst the following metals?
(a) Copper
(b) Iron
(c) Potassium
(d) Zinc
- The property of metals used in making temple bells :
(a) Ductility
(b) Sonority
(c) Malleability
(d) Hardness
- Metallic oxides are :
(a) Basic in nature
(b) Acidic in nature
(c) Neutral
(d) Can be acidic or basic
- The metal stored in kerosene due to its high reactivity with air and water is :
(a) Magnesium
(b) Sodium
(c) Zinc
(d) Mercury
- Which of the following is the best conductor of electricity?
(a) Copper
(b) Aluminium
(c) Silver
(d) Mercury
- A non-metal that has a lustre is :
(a) Coal
(b) Sulphur
(c) Iodine
(d) Bromine
- Rust is formed when iron combines with water and
(a) Nitrogen
(b) Oxygen
(c) Hydrogen
(d) Ozone
- The metal which is liquid at room temperature is :
(a) Copper
(b) Aluminium
(c) Sodium
(d) Mercury
- The shiny paper used to decorate sweets is made up of :
(a) silver
(b) zinc
(c) copper
(d) iron
- Which metal reacts with dilute HCl to liberate Hydrogen gas?
(a) Copper
(b) Silver
(c) Sodium
(d) Zinc
- Fill in the blanks :
- —-Hydrogen——-gas is produced when metals react with water.
- Metals are conductors of heat and———-electricity—–.
- Iron is more than copper.
- If a material produces a ringing sound when hit, it is said to be— Sonority —-.
- Non-metals are generally——-bad—–conductors of heat and electricity.
- The property of metals by virtue of which they can be drawn into thin
wires are called——– Ductility ———-.
State whether ‘True’ (T) or ‘False’ (F):
- Diamond is an example of a metal. F
- All non-metals possess lustre. F
- Sodium and potassium are metals that can be drawn into wires F
- Mercury exists as solid at room temperature F.