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CBSE Questions for Class 10 Chemistry Metals And Non Metals Quiz 6 - MCQExams.com

Non-metals are poor conductors of heat and tend to:
  • Be brittle
  • Conduct an electrical current
  • Have a shiny luster
  • Be malleable
  • Be sonorous
When Fe2O3 is heated with aluminium powder, the products obtained are _______ .
  • Fe, Al2O3 and heat.
  • Fe and Al2O3
  • FeO, Al2O3 and heat.
  • FeO and Al2O3
Which of the following elements are present at the top of the reactivity series?
  • Sodium
  • Potassium
  • Calcium
  • Zinc
Cinnabar is _______ .
  • HgS
  • HgO
  • HgCl
  • HgO.HgCl
Metals found in a combined state in the earth's crust are known as:
  • Native metal
  • Minerals
  • Substance
  • Element
Thermit reaction involves the reaction __________.
  • of Fe2O3 with Al to form Fe and Al2O3
  • of Fe with Al2O3 to form Fe2O3 and Al
  • CuO with Cu2S to form Cu and SO2
  • ZnS with O2 to form ZnO and SO2
Minerals that have a relatively high concentration of metal and can be extracted profitably from them are called:
  • Substance
  • Gold crust
  • Ores
  • Elements
When Cu2S is heated in air, the products obtained are _______ .
  • Cu2O, SO2 and Cu
  • Cu2O and CuO
  • Cu2O, SO3 and Cu
  • CuO, SO2, and Cu
When manganese dioxide is heated with aluminium powder, the products obtained are:
  • Mn, Al2O3 and heat
  • MnO and Al2O3
  • MnO, Al2O3 and heat
  • Mn, and Al2O3
Which of the following metals exist in free state?
  • Gold
  • Silver
  • Copper
  • All of the above
During electrolysis of molten sodium chloride:
  • sodium is obtained at the cathode and chlorine is obtained at the anode.
  • hydrogen is obtained at the cathode and oxygen is obtained at the anode.
  • sodium is obtained at the anode and chlorine is obtained at the cathode.
  • hydrogen is obtained at the anode and oxygen is obtained at the cathode.
 Cinnabar is the ore of:
  • Zn
  • Cd
  • Hg
  • Ag
Which of the following are found as sulphide ores?
  • Al, Hg, Pb, F
  • Fe, Zn, Pb
  • Hg, Pb, Na
  • F, Ca, Cu, Mg
Which of the following are found in Earth's crust mainly as oxides, sulphides and carbonates?
  • Metals above in the activity series
  • Metals in the middle of the activity series
  • Metals at the bottom of the activity series
  • All of these
How do the atoms combine in CaCl2 or Calcium Chloride?
  • By forming metallic bond
  • By forming co-ordinate covalent bond
  • By forming ionic bond
  • By forming covalent bond
Which of the following is the most important use of alloying?
  • Make it more beautiful
  • Gives desirable characteristics to the element
  • Provides resistance to corrosion
  • Both B and C
Stainless steel is made from:
  • Iron & copper
  • Iron, nickel and chromium
  • Iron & nickel
  • Iron & chromium
Which of the following are found as carbonate ore in nature?
  • Fe
  • Mg
  • Zn
  • Pb
Carbon, Phosphorus, Sulphur are non-metals. Which of the following are their characteristics.
  • Poor conductor of heat and electricity
  • Don't produce sound when beaten together
  • Brittle in nature
  • Can be gaseous, liquid and solid at room temperature
Metals found at the top of the reactivity series are never found in free-state because
  • they are less reactive
  • they are highly reactive
  • they are moderately reactive
  • they are not at all reactive

Which one of the following can't be drawn into wires?
  • Fe
  • Al
  • Cu
  • Cl
Which of the following is not a typical property of an ionic compound?
  • High melting point.
  • Conduct electricity in the molten and in the aqueous solution state.
  • They are insoluble in water.
  • They exist as oppositely charged ions even in the solid state.
The properties that are NOT possessed by non-metals are:
  • Brittleness
  • Non-conductivity
  • Malleability
  • Low density
The reddish brown deposit formed on iron nails kept in a solution of copper sulphate is:
  • Cu2O
  • Cu
  • CuO
  • CuS
Non-metals can't be used to make vessels but metals can. Why?
  • Non-metals are not sonorous.
  • Metals can be drawn into wires, i.e. they possess ductility.
  • Metals are good conductors of heat whereas non-metals are not.
  • Non-metals are not lustrous.
Which of the following cannot be beaten into thin sheets?
  • Al
  • K
  • Ar
  • Zn
Which of the following can't be beaten into sheets?
  • Zinc
  • Iron
  • Aluminium
  • Sulphur
Which of the following elements cannot be beaten into thin wires?
  • O
  • P
  • S
  • All of these
Pavan sorts some materials into two different groups and notes down their properties.
They are listed in the following table:

Group - I Group - II 
Cannot be beaten into thin sheets.Can be beaten into thin sheets.
When one end is in contact with a hot object, the other end does not become hot quickly.When one end is in contact with a hot object, the other end becomes hot quickly.
Cannot be turned into thin wires.Can be turned into thin wires.

Which of the following statements could be incorrect?
  • Materials of group II can be used to make bells
  • Materials of group I are generally not shiny and hard
  • Materials of group I are generally less dense than materials of group II
  • Materials of group II can be used to make materials that are conductors of electricity
In the table, the properties of some specimens are given.
SpecimenMelting PointShiningMalleabilityElectric conductivity
PHighmoreNoinsulator
QHighlessNoconductor
RHighmoreYesconductor
SLowlessYeslow conductor

Which of the specimen is a metal?
  • R
  • Q
  • P
  • S
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