Solved papers for JEE Main & Advanced AIEEE Solved Paper-2003

done AIEEE Solved Paper-2003 Total Questions - 9

• question_answer1) Which of the following group of transition metals is called coinage metals?     AIEEE  Solved  Paper-2003
  A)
  Cu, Ag, Au        
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  B)
        Ru, Rh, Pd                          
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  C)
  Fe, Co, Ni         
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  D)
        Os, Ir, Pt
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• question_answer2) Which one of the following is an amphoteric oxide?     AIEEE  Solved  Paper-2003
  A)
                          \[ZnO\]                               
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  B)
  \[N{{a}_{2}}O\]                                
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  C)
  \[S{{O}_{2}}\]                   
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  D)
  \[{{B}_{2}}{{O}_{3}}\]
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• question_answer3) A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is     AIEEE  Solved  Paper-2003
  A)
                          \[{{(N{{H}_{4}})}_{2}}C{{r}_{2}}{{O}_{7}}\]     
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  B)
        \[Hg{{l}_{2}}\]                  
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  C)
  \[HgO\]                               
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  D)
  \[P{{b}_{3}}{{O}_{4}}\]
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• question_answer4) The number of d-electrons retained in \[F{{e}^{2+}}\] (At. no. \[Fe=26\]) ions is     AIEEE  Solved  Paper-2003
  A)
                                          3                             
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  B)
        4                             
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  C)
  5                                             
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  D)
  6
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• question_answer5) What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?     AIEEE  Solved  Paper-2003
  A)
  \[C{{r}^{3+}}\] and \[C{{r}_{2}}O_{7}^{2-}\] are formed
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  B)
  \[C{{r}_{2}}O_{7}^{2-}\] and \[{{H}_{2}}O\] are formed
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  C)
  \[CrO_{4}^{2-}\] is reduced to \[+3\] state of Cr
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  D)
  None of the above
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• question_answer6) Ammonia forms the complex ion \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\] with copper ions in the alkaline solutions but not in acidic solutions. What is the reason for it?     AIEEE  Solved  Paper-2003
  A)
  In acidic solutions hydration protects copper ions
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  B)
  In acidic solutions protons coordinate with ammonia molecules forming \[NH_{4}^{+}\] ions and \[N{{H}_{3}}\] molecules are not available
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  C)
  In alkaline solutions insoluble \[Cu{{(OH)}_{2}}\] is precipitated which is soluble in excess of any alkali
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  D)
  Copper hydroxide is an amphoteric substance
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• question_answer7) The radius of \[L{{a}^{3+}}\] (atomic number of \[La=57\]) is \[1.06\overset{o}{\mathop{A}}\,\]. Which one of the following given values will be closest to the radius of \[L{{u}^{3+}}\] (atomic number of \[Lu=71\])?     AIEEE  Solved  Paper-2003      
  A)
  \[1.60\,\overset{o}{\mathop{A}}\,\]     
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  B)
        \[1.40\,\overset{o}{\mathop{A}}\,\]     
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  C)
  \[1.06\,\overset{o}{\mathop{A}}\,\]                     
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  D)
  \[0.85\,\overset{o}{\mathop{A}}\,\]
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• question_answer8)     Which one of the following nitrates will leave behind a metal on strong heating?     AIEEE  Solved  Paper-2003
  A)
  Ferric nitrate                     
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  B)
  Copper nitrate
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  C)
        Manganese nitrate        
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  D)
  Silver nitrate
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• question_answer9) For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liquid metal which does not solidify before glass. The metal used can be     AIEEE  Solved  Paper-2003
  A)
  mercury         
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  B)
                        tin          
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  C)
  sodium                                
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  D)
  magnesium
  done clear
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