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Q1.Metals act as good conductors of electricity because they
have
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A :
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empty spaces in the valence
energy band
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B :
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filled spaces in the valence
energy band
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C :
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hydrogen bonding
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D :
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ionic bonding
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Q2.Which type of bond leads to good thermal and electrical
conductivity in solids?
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A :
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Ionic
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B :
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Metallic
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C :
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Covalent
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D :
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Van der Waals
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Q3.Covalent compounds are soluble in
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A :
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methanol
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B :
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ammonia
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C :
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benzene
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D :
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water
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Q4.Which of the following solutes will dissolve to form a
molecular solution?
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A :
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AlCl3 |
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B :
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AgNO3 |
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C :
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CH3OH |
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D :
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KMnO4 |
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Q5..
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The decomposition reaction of
potassium chlorate is represented as
2KClO3 (s) →
2KCl (s) + 3O2 (g)
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KCl can be characterized as
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A :
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brittle
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B :
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very hard
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C :
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soft and waxy
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D :
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malleable and ductile
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Q6.
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The decomposition reaction of
potassium chlorate is represented as
2KClO3 (s) →
2KCl (s) + 3O2 (g)
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KCl will conduct electricity in
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A :
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water
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B :
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ethanol
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C :
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benzene
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D :
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chloroform
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Q7..
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The decomposition reaction of
potassium chlorate is represented as
2KClO3 (s) →
2KCl (s) + 3O2 (g)
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The KCl formed in the given
reaction is an example of
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A :
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molecular solids
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B :
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metallic solids
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C :
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covalent solids
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D :
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ionic solids
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Q8.
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The given chemical equation
represents an anionic single replacement reaction.
2ZnS + O2 → 2ZnO
+ 2S
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ZnO can be characterized as
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A :
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brittle
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B :
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very hard
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C :
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soft and waxy
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D :
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malleable and ductile
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Q9.
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The given chemical equation
represents an anionic single replacement reaction.
2ZnS + O2 → 2ZnO
+ 2S
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The boiling point of ZnO is
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A :
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moderate
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B :
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variable
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C :
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high
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D :
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low
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Q10.
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The precipitation reaction of
silver chloride is represented as
2AgNO3 + CaCl2 →
AgCl + Ca(NO3)2
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The silver chloride (AgCl) formed
in the given reaction is an example of
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A :
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ionic solids
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B :
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metallic solids
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C :
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polar covalent solids
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D :
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non-polar covalent solids
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Q11.
Common table sugar i.e., sucrose
is an example of
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A :
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molecular solids
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B :
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covalent solids
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C :
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metallic solids
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D :
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ionic solids
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Q12.In a crystal structure, the formula for ionic solids
represents the
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A :
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complete molecule
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B :
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symbol for the metallic element
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C :
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ratio of cations to anions in
the crystal
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D :
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ratio of the various atoms in
the crystal
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Q13.Malleability and ductility are the properties of
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A :
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ionic solids
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B :
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metallic solids
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C :
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covalent solids
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D :
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molecular solids
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Q14.The class of solids that has very high melting and boiling
points is
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A :
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non-polar molecular solids
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B :
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polar molecular solids
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C :
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covalent solids
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D :
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metallic solids
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Q15.Which type of solid is soft and waxy in nature?
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A :
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Covalent
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B :
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Metallic
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C :
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Polar
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D :
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Ionic
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