CBSE Questions for Class 8 Chemistry Materials Metals And Non Metals Quiz 4 - MCQExams.com

The phosphorus is stored in:
  • Kerosene
  • Water bath
  • Metal container
  • Air
Calcium is stored in kerosene.
  • True
  • False
A Non-Metal Which Forms A Neutral Oxide is______
  • carbon
  • hydrogen
  • sulphur
  • nitrogen
State whether the statement is true or false.

Statement: Generally non-metals react with acids.
  • True
  • False
Chlorine is greenish-yellow gas.
  • True
  • False
Bromine is the only liquid non-metal.
  • True
  • False
State whether true or false:
All non-metals are bad conductor of heat and electricity.
  • True
  • False
A metal which is brittle in nature is:
  • Zinc
  • Iron
  • Gold
  • Aluminium
Iodine is a non-metal which has metallic lustre.
  • True
  • False
Pencil lead does not contain lead (element).
  • True
  • False
The oxides of _____ which react with water to form acids are called acidic oxides.
  • metals
  • non-metals
  • plastics
  • none of the above
The brilliant shine over the freshly cut surface of metal is called lusture.
  • True
  • False
Copper metal is used in making:
  • electric wires
  • sheets of the car
  • filling cavity in teeth
  • preparation of hydrogen
Which of the following metal is not sonorous at room temperature?
  • Tungsten
  • Copper
  • Mercury
  • Silver
Non-metals have lustre. 
  • True
  • False
Which of the following metal is non lustrous?
  • Calcium
  • Tungsten
  • Aluminium
  • Lead
Non-metals are present in which state?
  • Solid
  • Liquid
  • Gaseous
  • All of the above
Which of the following possess lustre?
  • Silver
  • Platinum
  • Mercury
  • All of above
Which among the following is a poor conductor of electricity?
  • Oxygen
  • Aluminium
  • Gold
  • Silver
Ductile metals can be deformed into:
  • thin sheets
  • wires
  • rods
  • all of above
What is sonority?
  • Capability of producing a deep or ringing sound
  • Capability of being broken into pieces
  • Capability of being hammered into wires
  • None of above
Luster is a phenomenon which can explained as
  • shining of surface by reflection of light
  • deformation into thin sheets
  • deformation into rods
  • free electrons to conduct electricity and heat
Which among the following is a non-ductile metal at room temperature?
  • Tungsten
  • Lead
  • Argentum
  • Mercury
Which of the following metal is found in our body?
  • Iron
  • Calcium
  • Potassium
  • All of the above
Non-metals don't usually react with water but non-metal oxides do.
  • True
  • False
Why is phosphorus stored in water?
  • It is very reactive.
  • It does not react with water.
  • It reacts with air and catches fire.
  • All of the above
________ is called a space age metal and used in military jets and spacecrafts.
  • Zinc
  • Platinum
  • Copper
  • Titanium
Which one of the following is a non-metallic mineral ?
  • Iron
  • Mica
  • Copper
  • Bauxite
When a base combine with metal it forms metal salt/base and releases:
  • oxygen
  • hydrogen
  • carbon dioxide
  • nitrogen
A non-metal which is used for making electrode is:
  • diamond
  • cadmium
  • graphite
  • tin
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