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11 questions · timed · auto-graded

MCQ 11 Mark
………….. is a homogeneous mixture.
  • A
    Sand + water
  • B
    Flour + water
  • Salt + water
  • D
    Oil + water
Answer
Correct option: C.
Salt + water
Salt + water
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MCQ 21 Mark
…………… is a complex compound.
  • A
    Glucose
  • B
    Blue vitriol
  • Chlorophyll
  • D
    Soda
Answer
Correct option: C.
Chlorophyll
Chlorophyll
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MCQ 31 Mark
The property by which some solids maintain their shape even when subjected to external forces is called ………. .
  • A
    elasticity
  • B
    fluidity
  • rigidity
  • D
    plasticity
Answer
Correct option: C.
rigidity
rigidity
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MCQ 41 Mark
When a liquid is poured from one container to another, its shape may change, but its volume ………….. .
  • A
    increases
  • B
    decreases
  • remains the same
  • D
    none of them
Answer
Correct option: C.
remains the same
remains the same
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MCQ 51 Mark
Valency of carbon is 4 and that of oxygen is 2. From this, we understand that there are …………. chemical bond/bonds between the carbon atom and one oxygen atom in the compound- carbon dioxide.
  • A
    1
  • 2
  • C
    3
  • D
    4
Answer
Correct option: B.
2
2
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MCQ 61 Mark
Water, mercury and bromine are similar to each other, because the three are ……….. .
  • liquids
  • B
    compounds
  • C
    nonmetals
  • D
    elements
Answer
Correct option: A.
liquids
liquids
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MCQ 71 Mark
Milk is an example of type of matter called …………. .
  • A
    solution
  • B
    homogeneous mixture
  • heterogeneous mixture
  • D
    suspension
Answer
Correct option: C.
heterogeneous mixture
heterogeneous mixture
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MCQ 81 Mark
Matter that contain two or more constituent substances is called ……… .
  • mixture
  • B
    compound
  • C
    element
  • D
    metalloid
Answer
Correct option: A.
mixture
mixture
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MCQ 91 Mark
Matter is classified into the types mixture, compound and element, by applying the criterion …………… .
  • A
    states of matter
  • B
    phases of matters
  • chemical composition of matter
  • D
    all of these
Answer
Correct option: C.
chemical composition of matter
chemical composition of matter
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MCQ 101 Mark
Solids retain their volume even when external pressure is applied. This property is called …………… .
  • A
    plasticity
  • B
    incompressibility
  • C
    fluidity
  • elasticity
Answer
Correct option: D.
elasticity
elasticity
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MCQ 111 Mark
The intermolecular force is ……………. in the particles of solid.
  • A
    minimum
  • B
    moderate
  • maximum
  • D
    indefinite
Answer
Correct option: C.
maximum
maximum
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MCQ - Science STD 8 Questions - Vidyadip