Railways General Science & Technology Nature of Matter Sample Paper

done Nature of Matter Sample Test Paper-13 Total Questions - 20    [Download]

• question_answer1)
  Which of the following is a chemical change?
  A)
   Heating of iron to red hot
  done clear
  B)
   Magnetisation of iron piece
  done clear
  C)
   Rusting of iron
  done clear
  D)
   All of the above
  done clear
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• question_answer2)
  Heating of a substance results in
  A)
   A physical change
  done clear
  B)
   A chemical change
  done clear
  C)
   A physical or a chemical change
  done clear
  D)
   None of the above
  done clear
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• question_answer3)
  Which of the following is a physical change?
  A)
   Formation of curd
  done clear
  B)
   Burning of candle
  done clear
  C)
   Rusting of iron rod
  done clear
  D)
   Heating of copper wire by electricity
  done clear
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• question_answer4)
  Combustion of a candle is a/an
  A)
   Physical change
  done clear
  B)
          Reduction reaction
  done clear
  C)
   Endothermic reaction
  done clear
  D)
   Exothermic reaction
  done clear
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• question_answer5)
  Solution of \[CaC{{O}_{3}}\] in water forms a
  A)
   Homogeneous mixture
  done clear
  B)
   Heterogeneous mixture
  done clear
  C)
   azeotropic mixture
  done clear
  D)
   None of these
  done clear
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• question_answer6)
  An element which is not found in nature is
  A)
   Pt                   
  done clear
  B)
   K
  done clear
  C)
   Zn       
  done clear
  D)
   Pm
  done clear
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• question_answer7)
  Match the following columns:

  	List- I		List- II
  A.	Mercury	1.	element
  B.	Oxygen	2.	compound
  C.	Water	3.	mixture
  D.	air	4.	metal

  Codes:
  A)
   A-1, B-2, C-3, D-4
  done clear
  B)
   A-4, B-3, C-2, D-1
  done clear
  C)
   A-4, B-1, C-2, D-3
  done clear
  D)
   A-4, B- 2, C-3, D-1
  done clear
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• question_answer8)

  Which of the following statements is correct?

  I. German silver is an alloy of silver, copper and zinc

  II. There is no zinc in brass

  III. Bronze is an alloy of copper and tin

  A)
   I, II and III       
  done clear
  B)
   only III
  done clear
  C)
   I and III           
  done clear
  D)
   I and II
  done clear
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• question_answer9)
  An alloy of........ Is used in fountain pen nib tips.
  A)
   Platinum and silver
  done clear
  B)
   Platinum and gold
  done clear
  C)
   Platinum and indium     
  done clear
  D)
   Platinum and copper
  done clear
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• question_answer10)
  Which one among the following has been producing/can produce light by a chemical change?
  A)
   Sun
  done clear
  B)
   Moon
  done clear
  C)
   Electric bulb
  done clear
  D)
   Lightening and thunder
  done clear
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• question_answer11)
  Colloidal solution commonly used m the treatment of eye disease is
  A)
   Colloidal silver
  done clear
  B)
   colloidal gold
  done clear
  C)
   Colloidal antimony
  done clear
  D)
   colloidal sulphur
  done clear
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• question_answer12)
  Match the Column I with the Column II.             

  	Column I		Column II
  A.	Cod lover	1.	Liquid in a gas
  B.	Vanishing cream	2.	Solid dispersed in gas
  C.	Fog	3.	Aqueous emulsion
  D.	Smoke	4.	Water in oil emulsion

  Codes:
  A)
   A-1, B-2, C-4, D-3
  done clear
  B)
   A-3, B-1, C-2, D-4
  done clear
  C)
   A-4, B-3, C-1, D-2
  done clear
  D)
   A-2, B-4, C-3, D-1
  done clear
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• question_answer13)
  The diagram below shows a magnet near a pile of particles of iron and sulphur. The magnet attracts the iron, separating it from the mixture.                            Based on the diagram, which statement is true?
  A)
   The parts of a mixture keep their own properties.
  done clear
  B)
   The elements in a compound keep their own properties
  done clear
  C)
   The properties of a mixture are different from the properties of its parts.
  done clear
  D)
   The properties of a compound are different from properties of its elements.
  done clear
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• question_answer14)
  The four items below were part of a dinner. Each item is a mixture. [a]        [b]  [c]              [b]        Which of these mixtures is a suspension?
  A)
   A                    
  done clear
  B)
   B
  done clear
  C)
   C        
  done clear
  D)
   D
  done clear
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• question_answer15)
  A water molecule is made up of one oxygen and two hydrogen atoms. Why water is considered a pure substance?
  A)
   Water can be broken down by physical means.
  done clear
  B)
   Water can be combined with other substances by physical means.
  done clear
  C)
   Each water molecule is identical.
  done clear
  D)
   Water molecules are made up of different types of atoms.
  done clear
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• question_answer16)
  A metalloid is a classification of______.
  A)
   Atom  
  done clear
  B)
   element
  done clear
  C)
   Compound       
  done clear
  D)
   mixture
  done clear
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• question_answer17)
  Which of these substances is an example of a solution?
  A)
   Milk                
  done clear
  B)
   Brass
  done clear
  C)
   Mercury           
  done clear
  D)
   Concrete
  done clear
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• question_answer18)
  Which of the following is a way in which elements and compounds are similar?
  A)
   Elements and compounds are both pure substances.
  done clear
  B)
   Elements and compounds are both listed on the periodic table.
  done clear
  C)
   Elements and compounds are both made up of different kinds of atoms.
  done clear
  D)
   Elements and compounds can both be broken down by physical changes.
  done clear
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• question_answer19)
  In salt water which compound is the solvent?
  A)
   Water  
  done clear
  B)
   Salt
  done clear
  C)
   Oxygen
  done clear
  D)
   Hydrogen
  done clear
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• question_answer20)
  Concentration means
  A)
   How well two substances mix with each other
  done clear
  B)
   The amount of a particular substance in a given mixture
  done clear
  C)
   The extent to which a compound chemically combines
  done clear
  D)
   The ability of one substance to dissolve in another
  done clear
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