2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-3

  • question_answer
    A binary solid \[({{A}^{+}}{{B}^{-}})\]has a rock salt structure. If the edge length is 400 pm and radius of cation is 75 pm, the radius of anion is

    A)  \[100\text{ }pm\]                   

    B)  \[\text{125 }pm\]

    C)  \[\text{250 }pm\]                   

    D)  \[\text{325 }pm\]

    Correct Answer: B

    Solution :

        For \[NaCl\] type structure, Distance between \[{{A}^{+}}\] and \[{{B}^{-}}\] \[=\frac{1}{2}\times \] edge length \[=\frac{1}{2}\times 400=200\,pm\] \[\because \]    Radius of cation \[=75\text{ }pm\] \[\therefore \]    Radius of anion \[=200-75\]             \[=125\,PM\]


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