Solved papers for JEE Main & Advanced JEE Main Paper (Held On 19 May 2012)

done JEE Main Paper (Held On 19 May 2012) Total Questions - 1

• question_answer1) If\[{{K}_{sp}}\]of\[Ca{{F}_{2}}\]at \[={{25}^{o}}C\]is\[1.7\times {{10}^{-10}},\]the combination amongst the following which gives a precipitate of \[Ca{{F}_{2}}\] is     JEE Main  Online Paper (Held On 19  May  2012)
  A)
  \[1\times {{10}^{-2}}M\,C{{a}^{2+}}\]and\[1\times {{10}^{-3}}M\,{{F}^{-}}\]
  done clear
  B)
  \[1\times {{10}^{-4}}M\,C{{a}^{2+}}\]and\[1\times {{10}^{-4}}M\,{{F}^{-}}\]
  done clear
  C)
  \[1\times {{10}^{-2}}M\,C{{a}^{2+}}\]and\[1\times {{10}^{-5}}M\,{{F}^{-}}\]
  done clear
  D)
  \[1\times {{10}^{-3}}M\,C{{a}^{2+}}\]and\[1\times {{10}^{-5}}M\,{{F}^{-}}\]
  done clear
  View Answer play_arrow