2. Questions Bank
  3. 12th Class
  4. Chemistry
  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था Question Bank MCQs - The Solid State

  • question_answer
    The edge length of sodium chloride unit cell is 564 pm. If the size of \[C{{l}^{-}}\] ion is 181 pm. The size of \[N{{a}^{+}}\] ion will be

    A) 101 pm

    B) 181 pm

    C) 410pm

    D) 202pm

    Correct Answer: A

    Solution :

    \[2({{r}_{+}}+{{r}_{-}})=a\] \[2({{r}_{Na}}+{{r}_{c{{l}^{-}}}})=564pm\] \[{{r}_{N{{a}^{+}}}}=\frac{564}{2}-181=101pm\]


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