2. Solved Papers
  3. CET Karnataka Engineering

CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2004

  • question_answer
    If the distance between \[N{{a}^{+}}\] and \[C{{l}^{-}}\] ions in sodium chloride crystal is X pm, the length of the edge of the unit cell is :

    A)  4 X pm                                

    B)  X/4 pm

    C)  X/2 pm                               

    D)  2 X pm

    Correct Answer: D

    Solution :

    Primary valency of metal is satisfied only by the anion. It is simply ionic valency. While secondary valency is satisfied by ligands (which can give a lone-pair of \[{{e}^{-}}\]). The ligands satisfying secondary valency, are always written in co-ordination sphere. This concept was given by Werner.


You need to login to perform this action.
You will be redirected in 3 sec spinner