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JEE Main & Advanced JEE Main Paper (Held On 10 April 2015)

  • question_answer
    An aqueous solution of a salt X turns blood red on treatment with \[SC{{N}^{-}}\] and blue on treatment with \[{{K}_{4}}[Fe{{(CN)}_{6}}].X\]also gives a positive chromyl chloride test. The salt X is: JEE Main Online Paper (Held On 10 April 2015)

    A) \[Cu{{(N{{O}_{3}})}_{2}}\]                          

    B) \[FeC{{l}_{3}}\]

    C)  \[CuC{{l}_{2}}\]                               

    D) \[Fe{{(N{{O}_{3}})}_{3}}\]

    Correct Answer: B

    Solution :

                     \[F{{e}^{+3}},\]radical gives blood red with \[SC{{N}^{-}}\]\[C{{l}^{-}}\] radical gives chromyl chloride Test.


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