Solved papers for JEE Main & Advanced AIEEE Solved Paper-2002

done AIEEE Solved Paper-2002 Total Questions - 4

• question_answer1) Which of the following is a redox reaction?   AIEEE  Solved  Paper-2002
  A)
  \[NaCl+KN{{O}_{3}}\xrightarrow{{}}NaN{{O}_{3}}+KCl\]
  done clear
  B)
  \[Ca{{C}_{2}}{{O}_{4}}+2HCl\xrightarrow{{}}CaC{{l}_{2}}+{{H}_{2}}{{C}_{2}}{{O}_{4}}\]
  done clear
  C)
  \[Ca{{(OH)}_{2}}+2N{{H}_{4}}Cl\xrightarrow{{}}CaC{{l}_{2}}+2N{{H}_{3}}\]\[+2{{H}_{2}}O\]
  done clear
  D)
  \[2K[Ag{{(CN)}_{2}}]+Zn\xrightarrow{{}}2Ag+{{K}_{2}}[Zn{{(CN)}_{4}}]\]
  done clear
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• question_answer2) Which of the following reaction is possible at anode?   AIEEE  Solved  Paper-2002
  A)
  \[{{F}_{2}}+2{{e}^{-}}\xrightarrow{{}}2{{F}^{-}}\]
  done clear
  B)
  \[2{{H}^{+}}+\frac{1}{2}{{O}_{2}}+2{{e}^{-}}\xrightarrow{{}}{{H}_{2}}O\]
  done clear
  C)
  \[2C{{r}^{3+}}+7{{H}_{2}}O\xrightarrow{{}}C{{r}_{2}}O_{7}^{2-}+14{{H}^{+}}+6{{e}^{-}}\]
  done clear
  D)
  \[F{{e}^{2+}}\xrightarrow{{}}F{{e}^{3+}}+{{e}^{-}}\]
  done clear
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• question_answer3) \[MnO_{4}^{-}\] is a good oxidising agent in different medium changing to                    \[MnO_{4}^{-}\]              \[\xrightarrow{{}}M{{n}^{2+}}\]                                    \[\xrightarrow{{}}MnO_{4}^{2+}\]                                    \[\xrightarrow{{}}Mn{{O}_{2}}\]                                    \[\xrightarrow{{}}M{{n}_{2}}{{O}_{3}}\] Changes    in    oxidation    number respectively are   AIEEE  Solved  Paper-2002
  A)
  1, 3, 4, 5      
  done clear
  B)
                            5, 4, 3, 2  
  done clear
  C)
            5, 1, 3, 4                  
  done clear
  D)
            2, 6, 4, 3
  done clear
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• question_answer4) Oxidation number of \[Cl\] in \[CaOC{{l}_{2}}\] (bleaching powder) is   AIEEE  Solved  Paper-2002
  A)
  zero, since it contains \[C{{l}_{2}}\]
  done clear
  B)
  -1, since it contains \[C{{l}^{-}}\]
  done clear
  C)
  +1, since it contains \[Cl{{O}^{-}}\]
  done clear
  D)
  +1 and -1 since it contains \[Cl{{O}^{-}}\] and \[C{{l}^{-}}\]
  done clear
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