Which of the following metal has a low density?
  • Aluminium
  • Iron
  • Copper
  • Potassium
The best conductor of electricity among the following is:
  • Hg (Mercury)
  • Al (Aluminum)
  • Ag (Silver)
  • Au (Gold)
Identify the amphoteric oxide from the following:
  • MgO
  • Na2O
  • Al2O3
  • K2O
Which one of the following is a poor conductor of heat?
  • Mercury
  • Zinc
  • Silver
  • Copper
All metals exist as solid at room temperature except the metal 'X'. Name the metal "X'.
  • Tungsten
  • Mercury
  • Gold
  • Potassium
When an iron rod is heated at an end A, we feel heat at the end B. Which property of the iron rod does it indicate?
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  • Iron is good conductor of electricity.
  • Iron is good conductor of heat.
  • Iron is ductile.
  • Iron is sonorous.
Which property of the polyvinyl chloride makes it suitable for coating of electrical wires in homes?
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  • Polyvinyl chloride is a good conductor of heat.
  • Polyvinyl chloride is a good conductor of electricity.
  • Polyvinyl chloride is a bad conductor of electricity.
  • Polyvinyl chloride is cheap in cost.
The metal that can be easily cut by knife is:
  • Sodium
  • Copper
  • Magnesium
  • Iron
Which allotrope of carbon conducts electricity?
  • Graphite
  • Diamond
  • Fullerene
  • Both Graphite and Diamond
Metal which is a poor conductor of heat is:
  • Zinc
  • Lead
  • Gold
  • Copper
Which of the following property is generally not shown by metals?
  • Electrical conduction
  • Dullness
  • Ductility
  • Sonority
A lustrous non-metal is:
  • Iodine
  • Bromine
  • Chlorine
  • Sulphur
Copper can be drawn into thin wires. Which property is seen here?
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  • Copper is good conductor of heat.
  • Copper is good conductor of electricity.
  • Copper is malleable.
  • Copper is ductile.
Which is the most abundant non-metal on the earth?
  • Sulphur
  • Oxygen
  • Silicon
  • Phosphorus
Which metal has very low melting point?
  • Copper
  • Gold
  • Gallium
  • Tungsten
The non-metal that is liquid at room temperature is:
  • Bromine
  • Chlorine
  • Hydrogen
  • Iodine
The lustre of a metal is due to:
  • Its high density
  • Presence of free electrons
  • Its high polishing
  • Its chemical inertness
The most ductile metal is:
  • Silver
  • Zinc
  • Copper
  • Gold
Which of the following is a gaseous non-metal?
  • Iodine
  • Bromine
  • Carbon
  • Chlorine
The metals that produce sound on striking a hard surface are said to be:
  • Malleable
  • Sonorous
  • Ductile
  • Lustours
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